MTN - pathetic service!!!!!!!

We asked MTN in February to cancel 2 contracts, which we did not need anymore, and they upgraded the contracts without our knowledge. The person at the call centre said it is cancelled. We then received our statement in May and it still reflected. Again my husband phoned and they had another excuse, but said it will be cancelled immediately. When we received our statement last month, it still reflected and my husband phoned again. The person on the other side assured my husband that it was cancelled, but the amounts were deducted from our account. Today one of the consultants phoned my husband to upgrade these contracts - they were never cancelled. Now their excuse is my husband phoned only in February and they said he must reconsider and phone them back. O please - if we ask for a cancellation, just flippen follow our instruction. So MTN - get your house in order and let me know what you are going to do about our refund. I await your response.