Scratch Cards
Site admin can add coupons from admin panel. we have added custom meta field for send push notification coupon wise to mobile application users. for more details how to add coupons please check woocommerce Coupon Management live Doc.
https://docs.woocommerce.com/document/coupon-management/
Android App
Once you add coupons from the admin panel, they will appear on the Account page under the My Coupons section in the CiyaShop application, as shown in the image given below.