Reaping off customers

The Terrible Mistake I did In 2013 October was to place orders on credit with Home choice. Few days later I called to ask if I can convert my credit into cash. Their agent said it possible. I will have to pay the cash price + delivery fees 10% of cash price. I paid R7665 00 in cash. After 20 months I started receiving harassing calls day in & out. When I asked what money they were referring too they were clueless. I then complained on Hello Peter the next day I received a call from a lady in their finance dept. She told me that when I paid the money some 3 orders were still pending. Today I asked for those orders, the funny thing is that their cash price is close to R6300.00. What I don't understand is that there is finance charge table on their Magazine but has not been used anywhere in case(False advertising). Instead I have a burden of R2323,76 I must still pay bcos of their system error I didn't know of all this time.HOME CHOICE YR Interests are TOO ridiculous worse than those of furniture stores or credit card. You are reaping off yr Poor Customers bcos they r not paying attention to their statements. I will never ever buy things from u even if u r the last shop on Earth