Payment not allocated towards my Cell C account

I made a Payfast payment to Cell C on the 19th of April, which hasn't been allocated as yet. Two emails, with reference numbers and numerous phone calls to Cell C Customer Services later, the payment still does not reflect. Even the lady that assisted me today, Mbali, sounded quite amazed by that specific allocations departments lack of response. Cell C likes to hand peoples accounts over to debt collectors, but they seem completely *********** in allocating payments. If ending this contract wasn't so expensive, I would have ended it immediately. Very, very bad customer service...I suppose that is why you cannot go to a Cell C shop with enquiries. An anonymous person on the other side of a phone connection, can pretend to listen to a customer query and you as a customer can do nothing, because nothing is getting resolved.