MTN CONTRACTS

I had app**** for a contract online and a wrong device was delivered to me and that wrong device was not even functional.Took the device back to East Rand Mall In Boksburg and cancelled everything on that day 26 June 2020 and till today im still fighting this battle as im being blacklisted for a device that i dont even have.. I EVEN WANT TO SUE THIS MTN!!!! Terrified Lungile Vilane