MTN has ruined my life!!

If I could rate - 5 I would but unfortunately that option is not available on this platform. I decided to get a data contract with MTN in 2018. The deal that was advertised was 10 gig for R240. This was confirmed to me instore by a sales consultant. I agreed to the contract. That is to date the biggest regret of my life. The consultant failed to explain that the data was uncapped. Whilst I believe my usage was within the limits I almost fell over in shock when I discovered a substantial increase in my monthly pYment after 7 months with zero warning. I decided to end my contract with MTN. I told the consultant I want to end the contract and they didn't inform of the cancellation process. So I decided I cannot pay for something I did not agree to. I was then served a notice by MTN telling me I must pay R1534 or face legal action. As much as I felt this was unfair and unjust as the breadwinner at home I decided to pay because I cannot jeopardise my career prospect and I needed MTN out of my life! Despite the fact that I made payment in time MTN still calously took my account to VVM and I got a notice informing me that I OWE R2800. I send them proof of payment from my bank many times(which I still have) but I was told payment had not been recieved. I dont know if I was a victim of corporate bullying, incompetence or blatant *******ion but until this day MTN claims they havent recieved the money. I again paid VVM the outstanding balance minus the R1534 in an effort to clear my name. VVM has not removed my blacklisting. They told me they need MTNs Approval. I have been going back and forth with both companies until June 2019 now. This blacklisting is ruining my life. I lost out on a major job opportunity and I can not get financing for a vehicle that is much needed by my family. All I want to do is create a better life for myself and my family and MTN has greatly jeopardised that. I cannot provide for my family, my livelihood is affected and my emotional and psychological wellbeing. I need to warn others about the danger of contracting with MTN.