Refund promise not being kept.

I wrote a report on Hello Peter reporting that I was being billed after paying the account in full. They then called and promised a refund. It's been three weeks and no refund has been received. Instead I have had to spend money calling them to follow up on three separate occasions. I was told my proof of bank account was misplaced and I sent it again. No one called to confirm receipt and I am still without my R1900 refund. It is getting so incredibly frustrating and I will never do business with Lewis again. And to think they closed my Hello Peter report by saying we resolved the issue amicably. I consider this to be dishonest to say the least.