MTN’s poor service deliveru

I upgraded one of my contracts with MTN last year around this time (May). I had received a bonus sim as part of my package with the last cellphone and router however the upgrade was done on the incorrect SIM card. A sim was delivered to my home however I have never received the data as per the package I upgraded to. I have called MTN numerous time to have this rectified as I am paying monthly for it. In October 2020 I was promised by Rhulani Makhosani that the contract was cancelled and will receive a refund. To date I am still paying for this contract because they have combined my bill with my other active contract therefore I can’t stop the debit. I have received the worst service from MTN and taken from pillar to post. I want that extra contract cancelled and my refund to be processed, this is an entire ****. I am appalled.