DO NOT BUY FROM WE BUY CARS!!!!

DO NOT BUY FROM WE BUY CARS! They do not disclose faults and when reporting the fault we saw after 1 hour after driving off, they refuse to repair!!! We bought a car from Midstream for our daughters 18th birthday, she was so excited and now the car is sitting in our garage with a puddle of oil under it and they refuse to repair! We picked the leak up after 1 hour after leaving the branch, reported it the next morning and got told they will not fix and to go to the ombudsman because if they are instructed by them, then they will fix it. Two weeks later nothing has happened and there's going to be a very disappointed young lady on her birthday in a weeks time! DO NOT BUY FROM THEM!!!!????