Account Suspended because of Mtn mistake

Good day i am complaining about MTN for the 3rd time on this platform as I'm being constantly being told my issue is being looked into , this has dragged on for almost 5 months now and no one seems to care about how unfairly i have been treated by MTN direct . I upgraded my phone in May and specifically asked for a top up package which i will be paying R 499/ month . What i got was a 100 minute package in which the sales representative didn't tell me that i will be charged a out of bundle rate once my monthly allocation for data had been depleted and should have advised me to set a limit which is standard procedure . The sales representative didn't do this and i have asked for them to get the recording of our conversation which MTN says they cant get it should have been lost (which im suspecting foul play already ) my phone line has been since been suspended for 2 weeks now because of this and i have been following up every day with MTN and keep being told the issue has been escalated to management Im begging MTN Direct management to please look into my issue as i feel i have been treated unfairly as this was not communicated to me .