You are required to complete three simple steps before you use the coupon.

First of all, you should select sort of gold, Guild Wars 2 US Gold or EU Gold?
Secondly, you should select your server.
Thirdly, select the quantity.
After that, you are led to the forth step: check your order and fill in the coupon code in the column of "Use Coupon" and click the button "CHECK".
You have not successfully used this coupon until you managed to complete payment procedure. Before that, you are needed to fill in your personal information, which is used to contact you when we send you Guild wars 2 gold and provide follow-up service for you in the future. All information marked as * should completed and you should make sure submit real and effective information, or we cannot send gold to you. The last but not the least step is paying for your gold. Just select a payment method among several methods we provide for you. Click the button "BUY NOW" to complete the whole order procedure.