sears automotive they broke my car and now won't even give me any kind of answer aurora colorado

I had my car towed to sears on dec. 8th.  it had a faulty starter, and I was told that I also needed a fly wheel, which I ok'd.  I was told that this was a six and a half hour job.  My car wasn't ready until wednesday at noon.  I picked it up on the way to my daughter's surgery.  I got on the highway and the rpm's on the car are at 5 and not coming down. 

I have it towed back to sears and they tell me that it is showing a code that only a dealer can fix so they will have to send it out.  They do that finally on friday.  It comes back and i'm told that it still isn't right but I could take it for the weekend as long as I don't drive it at high speeds.  I did not choose to be set up and declined.

It went to the dealer on monday.  since then my only communication with sears has been when i called them.  I have heard several stories as to why it still hasn't been looked at..a different story from each person.  Meanwhile I had to rent a car and the meter just runs and runs on that. 

I am amazed that in the year 2013 a woman still cannot take her car to the shop without being taken advantage of and flat out lied to. 

Please please help me!

tracy

aurora colorado