MTN - Robin Hood in Reverse

I was at MTN branch at Soneike and the Gentleman there put it on a month-to-month contract @ R169 . Then one of your reps phoned me and said they can put me on a contract for R149 a month - and when I'm ready to get a phone I can get a phone-only contract. Now I see I pay R251 per month. Could you please explain to me how that works? That is not what I agreed to over the phone. If this is how you do business please remove my number from your call-centre database. Please check what is going on with my billing - it's an airtime, data and sms contract only. No Phone. And it's almost double what the guy promised me. I know you can check who loaded the new contract. And then you can trace the sales person and listen to the recording of our call. I've mailed and used your support services - but I'm getting no feedback. I also sent MTN messages on Facebook and they keep apologizing and telling me that their Channel Suport is looking into it. This has been going on since October 2018 - in the meantime they keep *****ing my money. I want the money back that they stole from me and not as credit - cos that will just lead to another problem with their 'trustworthy' system. I want the money paid back to me. The Facebook support asked if I want to cancel the contract - I'm starting to think I should. I would rather go back to the month-to-month @ R169. Otherwise they need to debit the R149 correctly each month. If they are not capable of doing this just cancel everything and I will move to a more capable network. Thank you for your time and assistance in ths matter and if someone from MTN reads this please give a date when I can expect this to be resolved and my over-debited money paid back.