Shield132 is right having some kind of guide and a FAQs section would be nice to answer some common questions and concerns from services like yourself because right now the 2 pages available for you is the Login and register page which only forces people to sign up and figure out themselves on how to use your services. Other than that it would be nice to see some kind of confirmation from the merchants you have made available confirming that they do have a cashback system going in with your service.