No Communication from MTN.

I want to cancel a MTN Data contract, first of all MTN must advise what the penalty will be, but I have a huge problem in the sense that I can't get hold of that Department. Please see the steps i followed. 1. Sent an e-mail on 28 September to *** 2. Got a auto Reference number back, nothing further. 3 Sent a follow-up e-mail on 04 October to *** 4. Got a auto Reference number back, nothing further. 5. On 6 October 2021 I phoned the Cancellations dept, couldn't get to them, hold on for 16 Minutes. 6. Later the same day I phoned again, holding on for 32 minutes, didn't get through. 7. I then phoned customer care, telling the lady I couldn't get through to Cancellations Dept, she offered to escalate my case to her manager, and advised that her manager will escalate to the Cancellations Dept Manager. 8. It is now one day later, still no reply from anyone. 9. My Data Contract number is *** 10. Please assist, at this stage I can't complain about service, because there is no service.