Mtn call centre no help.

Yesterday my line got suspended for no real I can think of. This morning I called the call centre, had to ise my landline. Only got response after 7 minutes. After asking the operator why my service was suspended, I was told that I have an outstanding amount payable. I then asked if a statement could be emailed to me. I received an email with an invoice that does not help then a statement from another persons FNB account and then I get told sorry but the new system cannot provide me with a statement beyond, 2 months. When I asked for a sollution the call was dropped. I might add that I have not received an invoice or statement for over a year since the mms system of sending monthly tstatements was discontinued. I do not have an android phone so its pointless to use the app. I feel so frustrated as a loyal Mtn client for many years that firstly my service was suspended and then they can not send me a simple statement via email.