Still awaiting my full refund from CellC

Just as I thought that Cell C came to their senses to refund me back my money which was taken from my bank account , to this day I'm still waiting for my refund . I spoke to Blanche Opperman from Cell C resolutions department and she promised me that my money would be transferred back into my account in no later than 7 working days. (I'm still waiting). She phoned e the next day asking for my banking details ,funny how they always knew where to debit on a monthly basis but don't have my banking details when they are supposed to refund me .<br> It's not making sense to me as to why I have to keep nagging Cell C like this, is this how customers are treated?<br> This leaves me no choice but to go straight to the Ombudsman maybe I will be taken more seriously. <br>