MTN LTE the worst service ever and they won't let me cancel my month to month contract

Cancellation Reference number: cf1c5d36-b065-40fc-9773-ae617268a405

LTE MSISDN: ***

I am trying to cancel my contract

On the 10th May I went to MTN Mall of Africa where I took my contract and I was told to pay R479.00 outstanding balance and I can cancel because I have a month to month contract

I have 9 weeks without getting internet connection

I've been following up with MTN Network Coverage *** for weeks to find out what is the status with the Tower and why it must take so long to fix and again to escalate this issue with high urgency. When I mentioned that I'm currently paying non existing service, I was told I can cancel my contract

Today when I called Retention department and spoke to Nonhlanhla she was told I need to pay over R4000 if I want to do early cancellation, when I told her there's is no way I'm paying that amount and already I've been paying for a non existing service and she put me hold and transferred me to Network Coverage were again my call was cut off

The customer experience I've received from MTN Network Coverage and now with Retention is probably the worst service ever.

I am not going to to pay for the non existing service for 2 months