Pepcell do not adhere to the Customer Protection Act - Consumer Complaint for PEP STORES

I bought a cheap cell from Pep last year. About ten days ago it would not accept the charger cable. Getting it fixed would cost the same as a new one. I went into Pep Cell Northgate, saw a display phone in the right price range (R500) and asked if they had it in stock. I am partly to blame as I did not check the amount on the slip. The following day I discovered the error and took it straight back in original packaging with the slip. According to the Consumer Protection Act consumers have a four day change of mind period. I explained what had happened and asked for a refund. They told me they only do refunds if there is an issue with the phone. I pointed out that the issue was that I couldn't afford it. They then rudely said they could not help me and I must phone customer care. I asked how to do this as at that point I did not have a working phone. I asked if they could phone customer care and they very rudely said it was not allowed. I can go the whole Consumer Commission and National Credit regulator as by breaking the four day law they are forcing me into a reckless credit deal I cannot afford. I would prefer to just get it done but if I have to I will go the whole hog. I just want my money back - as nice as the phone is it was a stupid mistake and I have to get a refund. I haven't used the phone or registered it on the network. It was an honest mistake and I want to make sure to keep my side clear.