1. Once you ready to order and once the photo book is completed with 60 pages, tap the order button
2. Type the coupon code to the below coupon code text box then tap the review order button.
Not sure on how to do a Wallet Topup? check this FAQ article https://chaterpress.freshdesk.com/support/solutions/articles/5000653098-wallet-payment-how-to-do-bank-transfer-