Cell C - Terrible Client Service

For the past two months (July & August) we have made payments to Cell C for our contracts (my wife and I) to the banking details on their invoice. I used our cell phone numbers as the reference (without the 0 in front as the banking reference only allowed 9 digits). The only mistake we made was using our cell phone numbers instead of the account no. But I keep on receiving emails and messages regarding our accounts being in arrears. I have sent the proof of payments with the account numbers, ID numbers, Cell phone numbers and names numerous times to Cell C. My wife went to Cell C in Knysna to try and resolve the matter, however both phones were deactivated. Knysna Cell C also sent the proof of payments through to Cell C billing department, but the payments were still not captured by Cell C. My wife went back to Cell C today and they activated her account again ,but my phone is still deactivated. This is poor and very unprofessional service. We are a retired couple and in the times we are living in we cannot be without a reliable and working phone, it is unacceptable to say the least. I will not recommend nor renew my contract with Cell C.