MTN *****s devices and bills people for it.

After upgrading an old contract with a new one, my account was billed for a second device for a whole year after. Mtn phoned me to offer an upgrade on the second device, wich I don't have. I queried the bill and was told I would be paid back the second numbers premiums in full, the line just had to be canceled. after two months of struggling to get through to the right representatives, I get phones put down in my ear, and still no cancellation, and a bill that bills me for something I never received or signed for.