How do I register and use coupons in Galaxy Themes?

The guidelines regarding coupon use are as follows: 

• Expired coupons are not refunded or saved. Once a coupon expires, it is automatically deleted from the account.
• If payment is cancelled before downloading an app, any unused coupons will be returned.
• If the price of an app exceeds the coupon amount, you can pay the difference with other payment methods such as credit cards.

If you purchase a product that exceeds the coupon balance, you can pay the difference with a credit card or mobile phone payment method. First select the type of coupon you have by selecting “Use Points or Coupons” on the purchase screen. Then, select the payment method you want. The remaining amount will be deducted from that account.