The cars under warrenty and the garage have a right to fix all the issues, and they should have them fixed quickly as well. When you buy a car from a garage you dont expect these type of issues, maybe a private sale but not a garage.
Hope all four brakes are working, if you had to do an emergancy stop for any reason the car would pull one way and you could lose control.
I feel for ya mate, if it was me i would give car back and look els where tbh.