PAYMENT POLICY

Effective Date: August 27, 2026
Last Updated: August 27, 2026

1. OVERVIEW

This Payment Policy explains the payment terms applicable to purchases made through https://diazdynamics.com/ (the “Site”), operated by Díaz Dynamics LLC (“Díaz Dynamics,” “we,” “us,” or “our”).

By submitting an order, you agree to this Payment Policy, our Terms of Service, Privacy Policy, Shipping Policy, Refund Policy, and any additional terms displayed during checkout.

2. ACCEPTED PAYMENT METHODS

We accept the payment methods displayed as available during checkout.

Available methods may depend on:

  • Your location

  • Billing address

  • Device or browser

  • Order amount

  • Currency

  • Product eligibility

  • Payment-provider availability

  • Fraud-prevention requirements

Depending on the payment options activated on the Site, checkout may support:

  • Major credit cards

  • Debit cards

  • Digital wallets

  • Shop Pay

  • Accelerated checkout services

  • Local payment methods

  • Buy now, pay later services

  • Other payment methods displayed during checkout

A payment method is accepted only when it appears as an available option during the checkout process.

We may add, remove, suspend, or modify payment methods without prior notice, subject to applicable law.

3. CURRENCY

Unless otherwise displayed during checkout, transactions are processed in United States dollars (“USD”).

If checkout allows you to pay in another currency, the amount displayed before submitting the order will control.

Your financial institution or payment provider may apply:

  • Currency conversion rates

  • Foreign transaction fees

  • International processing fees

  • Bank charges

  • Other provider-imposed fees

These fees are determined and collected by your financial institution or payment provider, not by Díaz Dynamics.

4. PRICES, TAXES, AND ADDITIONAL CHARGES

Product prices are displayed on the Site and may change without notice.

The price applicable to your purchase is the price displayed during checkout when the order is submitted, subject to correction of obvious pricing or technical errors.

Your order total may include:

  • Product prices

  • Applicable sales or use taxes

  • Shipping and handling charges

  • Duties or import fees, where applicable

  • Discounts or promotional credits

  • Other charges clearly disclosed before payment

You will have an opportunity to review the total amount before completing your purchase.

Díaz Dynamics will not add undisclosed charges after you submit the order.

5. PAYMENT AUTHORIZATION

By submitting payment information, you represent and warrant that:

  • The information provided is accurate and complete.

  • You are authorized to use the selected payment method.

  • Sufficient funds or credit are available.

  • The transaction complies with applicable law.

  • The purchase is not fraudulent or unauthorized.

You authorize Díaz Dynamics and its payment providers to submit the transaction for authorization and charge the total amount displayed at checkout.

Depending on our payment-processing configuration, your payment may be:

  • Authorized and captured immediately

  • Authorized at checkout and captured later

  • Captured when the order or part of the order is fulfilled

A payment authorization may appear as a temporary pending transaction on your account. A pending authorization is not necessarily a completed charge.

The timing for releasing an expired, canceled, or unused authorization is controlled by your bank or payment provider.

6. ORDER CONFIRMATION AND PAYMENT ACCEPTANCE

Receiving an order confirmation does not necessarily mean that payment has been finally accepted or that the order has been approved for fulfillment.

All orders are subject to:

  • Successful payment authorization

  • Fraud and security screening

  • Inventory availability

  • Verification of billing and shipping information

  • Compliance with purchase limits

  • Acceptance under our Terms of Service

We may request additional information before accepting or fulfilling an order.

If payment cannot be verified or completed, the order may be placed on hold or canceled.

7. DECLINED OR FAILED PAYMENTS

A payment may be declined or fail for reasons including:

  • Incorrect card or account information

  • Expired payment credentials

  • Insufficient funds or available credit

  • Billing-address mismatch

  • Security-code mismatch

  • Bank or issuer restrictions

  • Fraud-prevention controls

  • Geographic restrictions

  • Payment-provider outages

  • An expired payment authorization

Díaz Dynamics may not receive the specific reason for a declined payment.

If your payment is declined, verify the information entered, contact your financial institution, or select another payment method.

We are not responsible for fees, restrictions, or losses imposed by your bank or payment provider because a transaction was declined.

8. PAYMENT SECURITY

Payments are processed through Shopify Checkout and the payment providers enabled on the Site.

Díaz Dynamics generally does not receive or store complete payment card numbers. Payment credentials are submitted directly to the applicable payment processor.

Payment providers may use:

  • Encryption

  • Tokenization

  • Card-security codes

  • Address verification

  • Device information

  • Authentication protocols

  • Fraud-detection systems

  • Other security controls

No electronic payment or storage system can guarantee absolute security. Customers are responsible for protecting their devices, accounts, passwords, and payment credentials.

9. FRAUD PREVENTION AND VERIFICATION

To protect customers and the business, we and our payment providers may review orders for fraud, unauthorized activity, or security risks.

We may request additional verification, including:

  • Confirmation of billing information

  • Confirmation of shipping information

  • Verification of identity

  • Confirmation from the payment-account holder

  • Additional documentation reasonably necessary to verify the transaction

We may delay, limit, reject, or cancel an order if:

  • Information cannot be verified

  • The transaction presents an elevated fraud risk

  • Unauthorized payment activity is suspected

  • The billing and shipping information materially conflict

  • The order violates applicable law or our Terms of Service

If an order is canceled after payment has been captured, an appropriate refund will be issued to the original payment method.

10. PAYMENT PROCESSORS

Payments may be processed by Shopify Payments or another provider made available during checkout.

Payment processors operate under their own terms, privacy policies, security requirements, and processing procedures.

By selecting a payment method, you also agree to any applicable terms imposed by that payment provider.

Díaz Dynamics is not responsible for a payment provider’s independent:

  • Account restrictions

  • Credit decisions

  • Eligibility determinations

  • Exchange rates

  • Processing delays

  • Service interruptions

  • Financing terms

  • Interest charges

  • Late fees

  • Penalties

11. DIGITAL WALLETS AND ACCELERATED CHECKOUTS

If you use a digital wallet or accelerated checkout service, the payment and contact information stored with that provider may be used to complete the transaction.

You are responsible for confirming that the billing address, shipping address, email address, telephone number, and payment information supplied by the service are current and accurate before submitting the order.

Use of these services is also governed by the provider’s terms and privacy policy.

12. BUY NOW, PAY LATER SERVICES

If a buy now, pay later or installment-payment option is offered, financing is provided and administered by the applicable third-party provider, not Díaz Dynamics.

The provider determines:

  • Eligibility

  • Credit approval

  • Payment schedule

  • Interest, if any

  • Late fees

  • Account restrictions

  • Financing terms

  • Dispute procedures

Your obligation to the financing provider is separate from Díaz Dynamics’ fulfillment of the order.

If a qualifying refund is approved, we will submit it according to our Refund Policy. The installment provider determines how that refund is applied to your financing balance or payment schedule.

Continue making required payments until the provider confirms that your balance or schedule has been adjusted.

13. MANUAL PAYMENT METHODS

If a manual payment method is offered, the instructions and deadline displayed during checkout or in the order confirmation must be followed.

An order placed using a manual payment method may remain pending and will not be fulfilled until payment is received and verified.

If payment is not received within the stated period, we may cancel the order and release the reserved inventory.

Do not send payment through a method or account that has not been officially provided through our checkout, order confirmation, or verified customer service communication.

14. DISCOUNTS, PROMOTIONS, AND STORE CREDIT

Discount codes and promotional offers:

  • Must be entered before completing checkout

  • May be subject to expiration dates

  • May apply only to eligible products or customers

  • May have minimum-purchase requirements

  • May not be combined unless expressly permitted

  • Have no cash value

  • Cannot generally be applied retroactively

If a discount code fails, contact us before submitting the order. Completing an order without the discount does not guarantee a later price adjustment.

Gift cards and store credits, if offered, are subject to the conditions provided when issued and applicable law.

15. DUPLICATE OR PENDING CHARGES

A declined or incomplete payment attempt may temporarily appear as a pending authorization. Multiple payment attempts may result in more than one temporary authorization being displayed by your bank.

Pending authorizations generally expire or are released according to the financial institution’s processing schedule.

If you believe you were charged more than once for the same completed order, contact us with:

  • Your order number

  • The transaction date

  • The charged amounts

  • The last four digits of the payment card, if applicable

  • A screenshot or statement showing the transactions, with sensitive information concealed

We will review our payment records and assist with confirming whether the transactions were completed charges or temporary authorizations.

16. REFUNDS

Approved refunds are governed by our Refund Policy and are generally returned to the original payment method.

Once a refund is submitted, the time required for it to appear in your account is controlled by the payment provider or financial institution.

Refund processing times may vary based on:

  • Payment method

  • Card issuer

  • Bank

  • Currency

  • Country or region

  • Financing provider

Shipping charges, duties, taxes, and other fees will be refunded only when required by our Refund Policy or applicable law.

A refund confirmation from Díaz Dynamics means that the refund was submitted. It does not guarantee that your financial institution will post the credit immediately.

17. ORDER CANCELLATIONS

An order may be canceled only as permitted under our Terms of Service, Refund Policy, and applicable law.

Orders enter processing shortly after submission. We cannot guarantee that a cancellation request can be completed before fulfillment.

If an order is canceled after payment has been captured, the approved amount will be refunded to the original payment method.

If only an authorization was placed, the authorization may be voided or allowed to expire. Your financial institution determines when the pending amount becomes available again.

18. CHARGEBACKS AND PAYMENT DISPUTES

If you do not recognize a charge or believe there is a problem with an order, contact us promptly at diazdynamicspr@gmail.com or (787) 934-0492 so that we can investigate.

Nothing in this Policy limits your right to contact your card issuer or exercise legally protected billing-dispute rights.

When a chargeback or payment dispute is filed, we may provide the payment provider with relevant transaction records, including:

  • Order information

  • Payment confirmation

  • Shipping and delivery records

  • Customer communications

  • Fraud-screening results

  • Applicable store policies

  • Evidence related to the transaction

Knowingly submitting a false or fraudulent payment dispute may violate applicable law and our Terms of Service.

19. UNAUTHORIZED TRANSACTIONS

If you believe your payment method was used without authorization:

  1. Contact your bank or payment provider immediately.

  2. Secure the affected account or card.

  3. Contact Díaz Dynamics with the relevant order or transaction information.

  4. Do not send complete card numbers, security codes, passwords, or banking credentials by email.

We will cooperate with payment providers and lawful investigations as reasonably required.

20. PRICING AND TECHNICAL ERRORS

We reserve the right to correct obvious pricing, calculation, inventory, discount, or technical errors.

If an error affects an order, we may:

  • Contact you for instructions

  • Offer the correct price

  • Cancel the affected item

  • Cancel the order and issue an appropriate refund

We will not charge a higher corrected amount without your authorization.

21. CHANGES TO THIS PAYMENT POLICY

We may update this Payment Policy to reflect changes in:

  • Payment methods

  • Payment providers

  • Checkout functionality

  • Security practices

  • Business operations

  • Applicable laws or regulations

The revised Policy will be posted with an updated “Last Updated” date.

Changes will not retroactively alter the agreed payment terms of a completed transaction unless required by law.

22. CONTACT INFORMATION

For payment questions, contact:

Díaz Dynamics LLC
Website: https://diazdynamics.com/
Email: diazdynamicspr@gmail.com
Telephone: (787) 934-0492
Location: Puerto Rico, United States

For faster assistance, include your order number. Never send complete payment card numbers, card-security codes, passwords, or banking credentials by email.