Unacceptable service

I have just renewed my contract with MTN and am already starting to regret it. I have asked for a limit to be put on my phone so that I can monitor my monthly charges. I got an sms to say that my accound had been credited with 200 minutes,300mb data and the usual amount of SMS's. The debit order has gone off like it should. The day therafter I get an sms to say that my phone has been blocked and I have been trying to get hold of MTN Customer Care since yesterday but nobody answers the phone on the other side. Keep this up and I will get hold of the ombudsman and insist on having my contract annulled. I have spent in the region of 2 hours on the phone trying to get through to customer care and would like to be reimbursed for the inconvenience caused.<br>