Still waiting for Nov statement

I usually receive my statement on the 20th of the month. It is now the 9th of Dec and I'm still waiting for my Nov statement. I have logged a call with MTN a week ago and followed up 4 times since. Each time I get the same story - there are 2 systems - the one which the Customer Rep can access does not show the statement - it has to be requested from Back-office on another system. Even though a request has gone to 'Back-Office' I'm still waiting. The Customer Rep can tell me the amount that will be debited from my account so clearly the processing has been done. How difficult can it be to fix this? I understand there are many people experiencing the same issue - so why no email / SMS from MTN to let their customers know what is going on? On top of that I can't drive 10km without the signal dropping these days (I live in Johannesburg) - so this is the final straw for me. I am seriously considering moving to another service provider who can provide a consistent and quality service.