Bad service from CellC

As a valid CellC customer I've made payment from a cell phone number and I have sent proof of payment to show that I have made payment. Somehow people that are working at CellC who needs to allocate my payment to my account is *********** of doing the work. I've heard excuses upon excuses, I've even heard they have a backlog in the allocation department. Cell C has provided very bad customer service in keeping customers happy and informed. They say they take 48 hours to come back to you but they never come back to you with feedback. This is how this company treat loyal customers. I have been trying so hard to call them and communicating to them but they are just bad giving service bad service all the way. I hope CellC sees this!