Disgusting service

So in the beginning of lockdown a consultant from MTN called me offering me a sim only deal for 40Gigs for R200 a month. The simcard was delivered a week later and i realised it wasnt working. I've called over 100 times, went to mtn stores and even tried fixing it online, nothing worked, almost 5months later, what makes things worse is that they debit me every single month, mtn stores tell me straight that they can't help me with online orders I need to call in, which I've done over a million times. I am frustrated cause i lost my job, I cant afford to pay for something i don't even use and I want them to cancel thr ****** simcard. This service is disgusting,i wouldn't advice anyone to try MTN. I don't know what i was thinking. Please cancel this nonsense and refund me!!!