SERVICE PLAN OUTRAGE

We bought our Kia last year in Jan 2014. We had constant battles with the Salesman Sandlie and F&I Danel. We asked for a 5 year plan, we got a 6 year plan. we then were explained that the car we were buying had 5 standard services and 3 had already been done so we were getting 2 of them. We extended our service plan and Warranty which cost us +- R21000.00. She explained to my husband and I that this will be two extra services but as we don't meet the mileage it will be an extension of 2 year. We found out today that we only have one service left from liquid Capital and that is the instruction they got from Imperial. My services cost about R3500 so why would i pay R21000.00 for one service. I have asked for them to explain but they just told me it has nothing to do with them. REALLY? they are the dealership