no customer care - call centre closed

On 29/6 an amount of R470.00 was paid on my account with MTN by EFT. On 3/7 my outgoing call facility has been suspended. According to them, my account was not paid. My service provider forwarded my proof to payment more than once. My service hasn't been connected yet. If I phone their call centre (808) and wants to be transferred to an operator to explain the situation, I get a message the call centre has been closed down. In the meanwhile I have received another sms saying that if I don't pay my account, my service will be suspended and that legal action will be taken against me. How am I going to fix this problem and get my service reconnected if they cannot even attend to the customer.