Q Motors Once car leaves lot and it starts having oil leaks, egr, engine knocking .didn't have long enough to get the plates Arlington Texas

 Went and looked at car liked it looked really nice was able to get it financed second night having it needing to go from work turned on headlights and there wasn't any well they fixed that 2 weeks later went to back to the car dealer and told them that there is a knocking in the engine they take the car and and they bring it back to me and said no knocking and as i was getting into the car realize that the car was leaking from underneath asked why it was leaking told me it was from being worked on so now I have a car leaking oil and they say its not their fault well they say they are going fix anything else on the car I have had this car long enough to make 1 payment and now along with leaking oil I have something called a exhaust gas recirculation valve that needs to need replaced and let me not forget having a problem with the power steering pump issues what's sad I don't even have my plates or stickers for my car yet and I feel like its falling apart and this company says they will call and don't you go in there they say oh the person you need to talk to not there just treat you like your nothing