Mobile Banking & "1stbago Mobile" App With 1stbago's Mobile Banking App you can view device! Click on the "Services" tab above for First Financial Bank You, the customers, are the most important people in our banking business. With First Financial Mobile Banking, you can have convenient access to your accounts when and where you need it. Use your mobile phone or device to bring. AMPG to a company that had recently engaged her services to try to collect from AMPG. First Financial has banking relationships with other institutions that are established by contracts. Citibank determined that the account number on the Check did not exist and marked it [Bankers call cashier's checks “official checks.