*****ulent account on my name

I have been a victim of a *****ulent account that was opened last year tried to debit a few times on my Absa account reversed and reported this with Vodacom .the account now is over 6months in arrears and appearing bad on my credit profile! I sent emails with required documents.i followed up ,I advised the collections agents each time the called me to collect.they have now stopped calling or I blocked the number but the issue is remains unresolved!