CELL C - Worst Customer care ever experienced!!!!!!!!!!!!!

Worst decision ever to upgrade my contract with this company and continue to do business with them. Anyone considering them, think again, after sales service is worst ever. Besides my contract, I have a second data cell sim for study purposes. They quick to sell you something and take your money, but when they make a mistake and refund you, they are nowhere. For almost 2 months I'm struggling to get my data or a basic refund, either or. I went on the Cell C website and bought data bundle. They immediately took me to quick payment link, took my money but no data or notice that they have located the funds....however, money off my bank account into Cell C. I had to send bank statements and proof of payment and info to them.....almost 10 calls to Cell C call center later they advised me that I need to ask my bank to get in contact with them to arrange for the refund. My bank just advised me now they have been struggling to get any assistance from them or feedback for days.... and I have to talk to Cell C again. Cell C are earning nice interest on my money, that's THEFT!!!!!! Even the local branch tried to help and also called their own call center. They admitted that the call center was the worst ever and a joke. Thats Cell C 'sown staff!!! I'm planning to channel this to ombudsman as this apparent reputable company's CallCentre and support is little to nowhere.