My son purchased a car via gumtree from a company that sells numerous cars on there. It was an old car but since he has had it the engine light has come on. He took. It to a garage and been told it needs over 1200 £ of work done on it. This problem was obviously there before purchase. I have contacted the seller numerous times but they ignore me and gumtree dont get involved. Does anyone know if I have an options with this ? I do know he shouldn’t have got it from there but this seller does sell a lot of cars on there .