Simple wallet/giftcard system -- 2

Hi, I have an online Shop, And for payments i use Credit cards/PayPal. O want to improve a gift card system. The user insert a code And The code value will be added to his account. I know how to implement it to my site but i cant coding it. I only need The template of the gift system (simple html file that i will change, php And also a dump that i can upload on my database (database shluld show userid And balance)). I only need this, thanks in advance.