Cover your ATM chaeges account

Hello developers, I am looking to buildup a web site does the following functionalty Subscribers fund there account in the site The account would earn credit based on expected monthly charges by the issuer example if the card has a limit of US$ 4000 the owner credit his account his account with us by 2000 then after 30 dyes he get credit of the same percentage that if he utilized the other 2000 we cover the charges of the credit card issuer. The above is the main site functionalty the site, the rest of the requerments would be the logical items that is needed for the above function such as secured gate payment, subscriber transaction history support multi Arabic and English, number of slots accepeted by month the system doesn't accepet any number of subscribers admin has to set a limit to it, subscriber ability to withdrow from his account any time after 3 dayes notice approval.. high graphical reresntation such as the one used by sites for binary trade sites