Unfair treatment - Paying your account to ensure that it gets suspended!!!!!

I am a customer of Cell C for many many years. But for the past year I received horrible service from Cell C. I pay my account every month on time with the correct ref number and details and every month Cell C suspend my account. I will e mail proof of payment every month and this takes days and sometimes longer than a week to resolve. This is unacceptable. When Glocell did the administration I never had this issues. For what am I paying for a month's service if I only receive half of that??? I have e mailed the proof of payments numerous times and my account is still not sorted. My account has been suspended since the 12th of December and after numerous e mails and calls (by the way we can't even call the call centre anymore) nothing is happening. I received a SMS to advice that the matter has been resolved and to no surprise the account is still suspended. This is the worse service ever. You as a customer is doing your part but Cell C can not get it right to allocate funds.