Need some advise from you guys here,

around 3 weeks ago i apply a credit card at one of the MAYBANK branch but when i called up the cust care and i noticed that they did not receive any of my application.Then i called to the particular branch to check and they promised to call me back but they didn't.So dissapointed with their service and i feel cheated as they photostat my i/c and credit card.I affraid they might misuse my i/c.Can i made any complaint or what can i do?