MTN - Unreliable

Cannot get anyone at MTN to check my account. Have gone to branch in Empangeni and Richards Bay, they were off line. No feedback from head office. All email boxes of MTN is full. No calls are answered. Handed over to Shapiro Shaik (they are just as useless never answers emails just get sms's to say I owe money). Have forwarded payments 9 times to both branches as well as MTN and have received no reply. I have paid more than I needed but nobody updates you . Pathetic cannot understand how such a big company operates like this. I have been with MTN for more than twenty years service has gone right down the tube.