MTN not fulfilling contracts and not willing to assist

I was contacted by a company contracted to MTN to renew my contract with MTN on the 10th of October 2023. I was told that I would receive 20Gb day and 20Gb night data as well as a promotional 500 All network minutes and 10Gb day and night data recurring for the duration of the contract period (This is also reflected on my invoice). On the 4th of November I noticed that I did not receive my minutes allocation (Minutes and Data allocations occur on the 27th of every month). This is when I began to make contact with MTN. I again did not receive the 500 minutes on the 27th of November. I have not received any help from the MTN call center (including team leaders), the 3rd party company MTN used to contact me with regards to upgrading my contract, the MTN Store at the Pavillion Shopping Centre (As well as their Regional Manager Mr. Ayanda Mchunu), the MTN customer care email services (Mike) and ICASA. The call center and store clerks including supervisors are absolutely useless and are only able to generate tickets which gets closed without resolutions. Not a single individual takes an initiative to follow-up on the case or return calls even when I am assured that calls will be returned. If I'm lucky enough to get an email response after quite a few days, it's absolutely nonsensical (HI, Fahtima We acknowledge the receipt of your complaint. Kindly be advised that we have evaluated the number 072******8 and picked up that all data bundles were provisioned however the current package it's a data package it doesn't support minutes hence minutes were not allocated. Regards, Mike ). I have spent hours on the phone and quite a bit of time on my 7 visits to the MTN store in the last month with no success. There is absolutely no responsibility and accountability. I am battling to complete personal and professional administrative tasks due to not having these minutes. I am beyond frustrated. I have started purchasing airtime to convert to minutes as I could no longer wait. My sister is experiencing the same issue with her contract as well. She was told that she would get 14Gb day, 14Gb night data and 100mins. She was only given 4 Gb of day time data, 14Gb of night data and 50 all-net minutes. I have exhausted all avenues available with no success.