Incorrect Debiting of account due to *****

My credentials were used to **********ly open an account with Telkom Mobile where the ********** took out cellphones and tablets. I opened a case of ***** with Telkom mobile a month ago and this issue still has not been resolved and no communication was received from the service provider on the progress of the case. as a result my accounts gets debited almost daily with the outstanding amount and this is starting to have an impact on my credit record. i would like to get this matter resolved ASAP as the amounts being debited are very large.