Toyota seats

I purchased a Toyota Bakkie in November 2013 as a second hand car from Half way Toyota in Shelly beach. I have been complaining bitterly about the two front seats. Eventually I got a response and the seats were changed. It was found that they were installed at a bad angle. I did challenge the marketing chap to take a drive with me so he would understand the nature of my complaint. Although the seats have been changed nothing has improved. The seats are still as uncomfortable and it's painful to actually walk after being seated for just 10 mins in the car. This applies to both seats. It's disgusting that I have again asked for feed back from a number of Toyota companies Andre date no response. I paid over R300,000 and for that amount of money one would expect at least comfortable seats. The car is still under manufactures warranty