CELL C MY NIGHTMARE. Till today I don't know what was/is my monthly premium

Please remind me not to take a contract with Cell C again. I am at it again and again. Cell C will never change from their ways. A bunch of ****s. The worst service provider I have ever seen. They Debit your monthly premium then they call and say they never receive anything from you. I have been with Cell C for almost 2 years now and this year is the end of my contract and it is still with no JOY. The cancellation department takes 2 hrs to answer their calls. My premium changes every month and they add vat on extra changers they put. Till today I don't know what was/is my monthly premium. CELL C MY NIGHTMARE.