Bad service

My husband and I ordered six chairs and a table on the 24th of January 2015. We went back on the 28th of February and told the sales person(Lloyd Sibanda) that we do not want them anymore, we would like to change our order to couches and he agreed and said it was possible. He said he would transfer the R3500 that we had already paid for the chairs to the new order, all we had to do was to fill in the cancellation forms, of which we did and we paid R7000 on the 28th feb for the new order hoping that R3500 will be added here to make R10500 for the couches order. No feedback was given back to us if there was any progress with that. We went to the store yesterday(4 April 2015) and we found that this was never done and Lloyd said it was not done because we have to pay 15% cancellation fee , of which he didn't tell us when we told them we want to exchange. This is just a ******* and we are not canceling, we are exchaning and even placing a bigger order, which means more business. The service is so pathetic and Keith(the manager) was also not interested. He made us wait for him while he was assisting a client who came after us, avoiding us. Someone didn't do thier job here.