Midway Auto Center & Lube Broke things and refuses to fix them plano Texas

 I went in to get a few things on my new car fixed and to get it detailed. When I was leaving I noticed my tail window would not roll down so that meant I could not open the tailgate and get in my trunk. I also noticed that my antenna was broken off and stuck under my passenger seat. The manager looked at it and said it may be a fuse and they will fix it for free and also do the antenna. I went back in because I had to get a seat belt put in that I already paid for and was told they will fix the two things. Two hours later I was told the back window gears are totally broken and it was nothing they did that broke it so I would have to pay for it to be fixed. Then they said they couldn't fix my antenna because it was snapped off and they would have to go in and take the whole thing out and replace it, which I would also have to pay for. These things worked perfectly fine when I brought the car in and now I'm being told they can't do anything about it?! This is not ok! I'm a single mother and it's an old car and I believe they used that to their advantage!