false advertising and breach of contract

I have been issued a completely new data contract worth R600 per month on top of 2 data contracts worth R700 which was supposed to be rather and upgrade, when i clearly stated that i dnt need any other data as i barely finish the data i have at the recent moment, the consultant **** to me and said it wont be a new contract but rather just an upgrade to uncapped data,

i have been in and out of telkom stores, online platforms and even a number of voice calls trying to sort out this mess for the passed 8 months without success, but still they continue billing me without using this contract, and i logged queries to cancel this i have requested also the voice recordings of the day of the agreement with the consultant so i can take this to NCC and take it legally but they refused as they know their false adverti*****t and breach of agreement implicating them in the recording.

i am totally disgusted and frustrated about the horrible service telkom keep giving to its customers. They totally have no respect for their customers.