Payment Policy

Pay With Credit/Debit Card

The available credit card options are listed above. The credit card companies listed above are the most commonly used credit cards on this website. Do not worry if your credit card company is not listed, we encourage you to go ahead and make the purchase.

Please note that COTOSEN does not collect your credit/debit card number or personal information when you make a payment. For questions regarding your transactions on our site, please consult your card-issuing bank for information.

"Coupon Code"

To apply coupons to your order, you must go through "Check Out" to have your code input. Once you've selected your coupon code, please remember to click “Apply” and the discount will automatically adjust to your order.

Kindly note that Paypal Express Checkout doesn't avail to this option.


Please make sure that you enter the coupon code exactly as you received it, with no space before, within, or after it. To avoid errors, we recommend you to copy/paste the promotional code you received.

Coupons cannot be combined. You can only use one coupon code per order.

Coupons are subject to offer terms. This does exclude some items on our website which are not eligible for coupon discounts.

Contact Us


Company Address:Room 1099, Building 3, No. 1 Dongji Avenue, Jiangning District, Nanjing City (Jiangning Development Zone)

Business Days: Mon-Friday 9am-6pm


International Hotline:  +852 5627 2583  (All Customers, Service in English Only)