Brakes

I just got my 99 chevy malibu in August. I've had problems ever since. First my window stopped working. Then my car was pulling to one side so I have to get and alignment. All had to be fixed before my first 30 days with the car. I don't even think they inspected the car first. They just put it on the showroom floor. Two weeks later my brakes started squeaking really bad. Now i'm a woman but i know what it sounds like when I need new brake pads. I took it in and they released it to me stating that "The front brakes were at 85% and rear were at 80. Brakes have been cleaned and adjusted." Well of course i drove out of the lot, stopped at the stop sign, and heard a loud squeak. Instead of taking it back to them i took it somewhere else. I paid $45 for the brake pads and $30 for someone to put them on. I went back to the lot and told them I only wanted my $$ back for the cost of the pads. One guy said he could help me and to bring in the reciept. Then some manager from financal services told me that in my warranty it states that i have to get repairs approved by them first. Now why in the hell would i take something back to them when they should've fixed it in the first place? What a load of bullshit. I hate JD!