Payment & Security

Last updated: October 24, 2026

This page explains how available payment methods, order totals, transaction authorization, and checkout security are handled when you place an order through sretyu.com.

1. Payment Methods

The payment methods currently available for your purchase are displayed during checkout.

Available options may vary depending on your location, currency, device, order details, and the payment services enabled when your order is placed.

Please select one of the payment methods shown at checkout and follow the applicable instructions to complete your purchase.

2. Payment Authorization and Verification

Orders may be subject to transaction authorization, payment verification, and fraud-prevention review before they are accepted or fulfilled.

A bank, card issuer, or payment provider may request additional verification, decline a transaction, or place a temporary authorization hold on your account.

These decisions and authorization-hold periods are controlled by the applicable financial institution or payment provider.

If your payment is declined, verify your billing information and contact your bank or payment provider if necessary.

3. Checkout Security

Checkout is processed through Shopify together with applicable payment providers using technical and organizational security measures intended to protect transaction information.

Complete payment-card information is handled through the applicable payment-processing infrastructure. We do not store complete credit or debit card numbers on our own servers.

For your security, never send complete credit card numbers, debit card numbers, card security codes, or online banking passwords through email or customer-support messages.

4. Prices and Final Order Total

Before payment is submitted, checkout displays the applicable product prices, shipping charges, taxes where applicable, discounts, and final order total.

Prices on sretyu.com are displayed in U.S. dollars (USD) unless another currency is clearly shown.

Please review your products, quantities, shipping information, discounts, and final total carefully before completing payment.

5. Financial-Institution Charges

Your bank, card issuer, or payment provider may separately impose foreign-exchange, international transaction, currency-conversion, or other financial-institution fees.

These charges are determined and collected by the applicable financial institution or payment provider and are not charged or controlled by sretyu™.

If you have questions about such fees, please contact your bank or payment provider.

6. Discount Codes and Promotions

Valid promotional or discount codes should generally be entered before checkout is completed.

Please confirm that the applicable discount is reflected in your order total before submitting payment.

Promotions may be subject to expiration dates, product eligibility, minimum purchase requirements, exclusions, usage limits, availability, or other conditions presented with the applicable offer.

Unless otherwise stated, promotions cannot be redeemed for cash or combined with other offers.

7. Declined, Pending, or Duplicate Charges

If a payment is declined, please verify your billing information and contact your bank or payment provider if necessary.

A pending amount may be a temporary authorization rather than a completed charge. The time required for a pending authorization to disappear depends on the applicable financial institution or payment provider.

If you believe you were charged more than once for the same order, contact customer support with your order number and relevant transaction details.

Do not send complete card or banking credentials by email.

8. Order Confirmation

After an order is successfully submitted, an order confirmation will normally be sent to the email address provided during checkout.

If you do not receive a confirmation email, check your spam or junk folder and confirm that the email address entered at checkout was correct.

You may contact customer support for assistance if you remain unable to locate the confirmation.

An automated confirmation acknowledges receipt of your order request and does not necessarily mean that the order has completed all payment verification or fulfillment checks.

9. Payment Questions

If you believe a payment was charged incorrectly or have a question about checkout, contact customer support using the details listed above.

Please include your order number where available and provide a clear description of the issue.

For your security, do not include complete credit card information, card security codes, or banking passwords in your message.

We aim to respond within 24 hours. Customer service is available from 8:00 AM to 6:00 PM China Standard Time (UTC+8).