Building up Profile for a netshop

I need someone to help me to build up profile for a netshop. it is like this :a buyer purchases an item from a seller, the buyer will have the option to leave feedback for that seller. The buyer will have the option to select positive. I need the feedback . It needs transacation and verify billing system. each one can get $5 .At the same time, i can help u to build up your profile .