BILLING UNNECESSARY FUNDS

I am literally fed up with Telkom Mobile keep debiting my account unnecessarily for amounts that I have not even signed for for the past 3 months Telkom debits my account 3 times for the amount of R1500 which is totally unacceptable and when I call to query no one can answer as to what is going on with the account all they say is they are sorry.!!!!!! It is really a disgrace to receive such pathetic and lousy service from a high stake institute. I have called on numerous occasions and the call gets transferred from one person to the next with no answer.