No Customer Service at MTN

We have never in our life experienced what we have experienced with MTN! We have been trying to find a resolution for my husband's account with MTN since 17 October and to date we have still not resolved the issue. He unfortunately is now unemployed and cannot afford his current contract. We have tried to downgrade but firstly battle to get through to the call centre, staff in the MTN shop in the Newmarket Mall are not interested in your problem. We did get some help at the Alberton City shop and when we did get through there was a very helpful young man in the call centre. We thought at last it has all been sorted. But it never ended there......we never received the email for the migration, then we finally got through to them again and they sent it again, we then sent it back and asked for the migration invoice which we were told would be R 626 and some change, but we have never received the invoice. We have continued to send emails and we can see that our emails are being opened but we never get a response! I am so appalled with MTN, I never realised just how bad their brand is.