Worse experience ever!!!!!! UNACCEPTABLE#!#!!!

I have a contract with cell-c. My debit is due on the 28th of each month. I always pay them cash ages before my debit is due. This one time and only time I paid my account later than what I normally do but STILL before my debit is due, they still debited my account. I called them to find out what's going on and have the money refunded to my bank account as I have made payment. They advised me that the payment has not reflected as yet and once the payment reflects the money will be refunded into my bank account within seven business days. I understood. Seven business days later which was the 8th of June and my debit only being due on the 28th of each month, I called again to find out about the refund. I was then told that NO!!! the CREDIT ON MY ACCOUNT has been allocated for my end of June payment. TWENTY DAYS before my payment !!!! I requested to speak to a manager and this guy was very apologetic he seemed genuine. Of course he promised me that the funds is going to be refunded, but because of procedure its going to take another seven days. I said its fine of course. Again seven days later I called back just to do a follow up,because the money still wasn't refunded into my bank account, Again I was told the same thing the money have been allocated for end of June payment when we not even half way through the month. So the previous manager actually WAS NOT REALLY bothered with my request. I then requested to speak to a manager the agent came back without a manager. Most likely because their no good managers did not want to take the call. I asked again to speak to a manager all the agent said was okay and just left me there. And then the call was DROPPED because that no good manager probably didn't want to take the call. I called back again and requested to speak to a manager who was just talking all over me not giving me a chance to speak,which is so disrespectful. I just gave up!!!. Then she still advised me to rate the service. Being as understanding as I am the previous calls regardless of how upset I was I gave them a very good rating. But for some reason after the last call after the agent asked me to rate the service which is most likely procedure. I was not allowed to rate the service , it just didnt come through. Why do you have a feedback survey if you don't want any bad feedback ?

Your customer service or not the agents your managers you have are USELESS there's no one taking ownership you are just a disgrace

I wouldn't recommend cell-c to anyone!!!!!!

I want my money to be refunded with immediate effect or I will take this further!!!