Poor Customer Service

I have found out in Sept that there is a contract opened under my name fradulently as it was deducting from my bank account, went to cell c store in waterfront to enquire and was told to submit affirdavit and certified copy of id and I did exactly that but till this day nothing has happened I just keep getting calls that the account is in arrears I even sent email to their customer service seeing that the store has done nothing but have received no concrete feedback and i hate this as its affecting my credit record! We in the New Year now and i’m not sure how long do they take to attend to queries...