I haven t had my car for 6 months because they sai...

I haven t had my car for 6 months because they said I needed a new engine. For months now they have kept saying oh in a couple weeks and In a couple weeks still no engine. I am 20 years old and I go to college so you see why this is so annoying!!!! Whenever I call they never give me an answer and they aren t trying to do anything about getting me my car back!