I will never take another Telkom contract for LTE

I am very disgusted by how Telkom Southgate branch deals with customers coming in to take out LTE internet contracts. I have had problem after problem with Telkom since the very first day and I regret the day that I took out this contract. First of all, I had set up a debit order system for Telkom to debit my account every month and then I received messages threatening me that I will be black listed because of outstanding payments. I went to the Southgate branch and they advised that Head Office removed the debit information from my account. I had to make a bulk cash payment in store. After speaking to a consultant, I am not supposed to have this LTE contract because there is no Telkom network in my area. So how the hell does a consultant issue a contract to me that doesn't even work in my area. I have to travel to my sister's house to be able to use this damn thing and I am sick of it. I would like to get rid of this and cancel this contract as soon as possible but now I am told that even if I cancel this contract, Telkom will still debit my account for the duration of the contract whether I use it or not which is unacceptable!