Ra auto audi problems

We bought a audi q7 from them.on delivery the car broke down and they had to replace all 6 injectors.The eventually managed to deliver the vehicle a month later.I had a constant oil leak on the vehicle and i phoned them and said that i am not happy the vehicle uses oil.The seals where the injectors was was leaking and none of the injectors was replaced.These guys are bull****tig from start to finish.I am highly fed up with them and going to take this matter to a higher level.Dont buy from them!!!!Its just excuses and they **** about fixing the car!