Telkom mobile - poor service

I upgraded my Telkom LTE package to a deal that was running in Oct/Nov, one of the "deal of the month" specials.

While doing the upgrade I specifically asked if the upgrade would automatically cancel the existing contract so that I don't end up with 2 contract.

Not to my surprise, I learnt of 2 errors with my contract upgrade.

1) They upgraded me to the wrong contract and didn't give me the deal as per the "deal of the month". So no free modem and less data for alot more money. 2) At the end of the month, I received 2 bills. So my initial contract wasn't upgraded, but the consultant instead signed me up for a new contract. ( I'm not sure if the sales consultants work on commission, but I specifically asked to make sure I wouldn't be double billed so it leaves me to think that this was done deliberately to earn commission on the sale of a new contract)

I have been back and forth to 2 different stores with no results since Oct. This has become painful and expensive. All along every consultant says the problem has been logged, the problem will get sorted, but no results to date.

I would appreciate a cancellation of the old contract and a credit passed and back dated to the date of my initial upgrade.

I have 2 case numbers relating to my cancellation of the old contract ********** 3 and a follow up case number ********** 2 which is what I got after numerous follow ups in store.