*********** security measures!!!!!

good day, please can someone assist i have logged a call regarding a *****ulent credit card opened under my name. i have been emailing and no is coming back to me. this has hindered my well being as now i can get credit. i dont have a mass mart credit card and i dont understand how your security process works was this confirmed, is this an inside job. i need answers ASAP and i need this sorted can someone give me feedback.!!!!!!!!!!!!!!!!!!!!!!