Once you get your code:
1. Add OnePlus 9 Pro to shopping cart and apply the coupon before checking out, OR
2. Save the coupon to your OnePlus account for future use
How to save a coupon to your account:
1. Register an OnePlus account
here
2. Click on Account icon in the top right section (click your profile icon)
3. Click on the Vouchers / Gift Code /Token tab and enter your unique code
4. The coupon is saved! Make sure to use it before expiring
*Please note: the coupon will be available to use in the United States and Canada only.