MTN

I app**** for mtn modem and data which I received I only got data the month that I received the modem then that was it I have not received any data since then I have been paying for something I don't even use I send an email asking them to cancel the contract they said it was canceled till to date nothing is canceled, I have send a second email for the contract to be canceled no one us responding to my email I'm so tired of mtn I want my money back their service is poor