Sales department - Deceptive agent

I was sold a wifi router of unlimited and pricing is R295 per month by your call centre agent within the outbound sales department. I agreed to the month to month proposed package, she said there is coverage. The call was received on the 09th/10th of Septermber 2025 and the router with the sim card was delivered on the 12th of September 2025. It connected for about 3hrs and disconnected, I then called the coverage department and it was activated. An hour later same problem persisted, called the call centre again,was told the was a glitch at the tower and it was activated - same problem encounted "no internet" .Third time I called, the agent fr om the coverage department request the live pin gps coordinates- it was sent and the agent said there is no coverage in our area. (These calls were made on the 12/09/2025). Only today I was off at work and managed to go to your MTN store in Secunda Mall and was told to call the Cancellations department and request a cancellation letter. I spoke to Indiphile Ndabambi, he refused to send it to my email and said he would lose his job and that there is coverage of which there isn't. SO NOW TELL ME WHAT AM I SUPPOSED TO DO WITH A SERVICE THAT IS NOT WORKING??? MTN AGENTS ARE RUDE AND DECEPTIVE... My ID no. is *** & my cellphone is ***