Useless service, as usual

Customer service is useless, as normal.

My invoice is overdue by 10 days, which in my case, has a direct financial impact affecting my business. MTN's customer service can only responded to me in these ways:

'I cannot help you' Or cutting the call to hang up on my request. (Sizwe ? - obviously, he did not provide his surname). On hold - Msizi Tshapa - supervisor on duty - replies with canned repsonses, just says that he cannot help, unwilling to contact anyone to resolve the issue. This call has been going on for approximately an hour, (I'm currently on hold which I expect the tactic is to get me tired of waiting and just hang up - this has been used by MTN Customer Service many times before)