Frustrated customer with regards to customer service.

In May 2017 I requested for my telkom contract to be terminated with full knowledge and acceptance that due to early termination i would be charged a penalty of R1500 which I agreed to pay. I was then given a reference number and confirmation of the termination agreement. The contract to date ie. JANUARY 2018, is still active and money is still being debited from my account without my permission. I placed a stop order on the debit order but then smart telkom then changed the debit details and continued to deviously debit my account. I have numerous reference numbers on record which proves that due to a high level of incompetence my Request has continued to fall on deaf ears. I even went personally to the Gateway branch where i was told that they could not assist me...seriously??? How can a branch not help. Theres always a way in which a customer can be assisted. Clearly telkom does not believe in customer service as they have shown me.Now R3200 has been debited instead od the agreed termination penalty. So now ive had to pay an additional R1700 which i did not budget for. This level of incompetence is unacceptable especially from a company who boasts superior customer service. Its appalling really. It is seriously distasteful and needs to be rectified with some urgency. I will never recommend Telkom to anyone. Its the worst service provider with no respect for its customers. Pathetic service!!!