Never buy a SsangYong

My 68 year old father bought a brand new Sangyong Korando in November 2012 with a extended warranty. From the start the auto gearbox was giving them issues and Sanyong decided to replace the gearbox. One month after the car was paid off in 2016 the gearbox failed again and Sanyong told them that they are not responsible because the car has just gone out of warranty ? and that their extended warranty ran in conjunction with their normal warranty ? so the extended warranty was only in place while the factory warranty were in place ?. They took it to a gearbox repair shop and now they are told that there is only 5 2012 KORANDO's in S.A. with that type of gearbox and that no one knows how to repair it..? it has cost them thousands and the gearbox is still not working....now I had enough !. I am about to go legal and will not stop until Sanyong has paid for this terrible service. We are going on every social media platform available to us because that is not right !!! My father is 68 years old. His only mistake was to buy a peace of **** car from a terrible manufacturer. Shame on you. How can a extended warranty run with a factory warranty ?.