Trouble cancelling Mtn cellphone contract

<p>I took out a contract with Mtn for a cellphone and a data sim and they took too long to deliver it. I subsequently requested the consultant who processed my contract to cancel it via email and i called him and requested him to cancel it. He said he will cancel it but he never did. The courier company called to arrange delivery the following day and i requested them to return the package to mtn because i was in the process of cancelling the contract. Mtn proceeded to debit the monthly fees and load airtime on the number i had took out the contract despite my numerous requests to mtn and its consultants to cancel the contract because i never received the phone. I have been calling every week to follow up on the cancellation and i keep being told that their head office will call me to process the cancellation. Please help with getting this contract finally cancelled.</p>