*** Mondo/ Rewardsco atrocious customer service

Did an MTN contract upgrade with this company in February 2019. They delivered my phone , but there was a problem with the phone , so I handed it in at an MTN store on the 05-03-2019. Was told I must phone the repairs division after two weeks. I did so , but the phone wasnt ready, after a lot of phone calls and frustration , I eventually got the telephone number for MONDO in June. I have since spoken to 5 different agents at their MTN customer care centre and was constantly given the run around. No feed back, no updates nothing. I was eventually told by the last person I spoke to ,that my delivery for the phone had been cancelled. He promised to sort this out and get back to me, that was the end of September. So I phoned MTN to get a refund for the amount I've been paying on the phone, But nobody at MTN seems to know whom I should speak to, the number on the internet seems to be for the repair centre and the repair centre will put you through to the billings department, and the billings department will put you back to the repair centre, Nobody seems to know how to trace this phone that has been MIA since March 2019. Please do not take calls from ***, the service and customer aftercare is atrocious. As soon the sale is made , that's it ,you don't hear from them again. And apparently their Manager has been talking to MTN about the delivery of this phone since June. My advice ,if your cell phone is due for an upgrade , rather go to the service provider store instead of through these agents. Its an absolute nightmare!!!!!