Faulty product buy new stuff and receive demo unit

I am very unhappy with the service I received from Lewis. <br> We purchased a lounge suite in Dec 2014 paid R10000 and was told the lounge suite is new. We received the lounge suite 2 days later after purchasing the suite only to discover that they have given us the demo item but we paid for a new one. Since Dec up until today we get promised by Suraya that we are going to receive a new one which never happend. Friday the 01/05 we then said they need to replace it with a new lounge suite which cost us now 15000(they getting it from Lewis Worcester) and that we will receive it today 04/05. (Regional manager was also present). Well guess what I phoned them today and the stock controller said sorry he forgot to phone me and they not going to deliver today cause the stock at Worcester is also a demo. This is unacceptable all the stuff we purchased from Lewis their were always something wrong they have a very poor customer service no feedback at all!!! I want them to collect all their stuff and give our money back.... I will not recommend Lewis store to any of our friends and I am taking it higher with the papers as well.....