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.

Orders may be subject to transaction authorization, identity or 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.

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

Payment information is handled by Shopify and the applicable payment service providers involved in processing the transaction. No method of online transmission can be guaranteed completely secure.

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

Prices on cosaiy.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.

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 Cosaiy™.

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.

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.

If you believe you were charged more than once for the same order, contact us with your order number and the relevant transaction details. Do not send complete card or banking credentials by email.

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, please check your spam or junk folder and confirm that the email address entered at checkout was correct. You may also contact customer support for assistance.

If you believe a payment was charged incorrectly or you have a question about checkout, email service@cosaiy.com.

Please include your order number where available, along with a clear description of the issue. For your security, do not include complete credit card or banking information in your email.

For refund eligibility and processing details, see our Return & Refund Policy .