<prompt> Human: My car has not been behaving properly for awhile which I suspected was the transmission due to slipping and hard shifting. I finally wanted to get it fixed so I dropped it off at a mechanic and waited until the next day to see what they said was wrong with it since I did a night drop after they were closed. I get a call and they said they needed to open up the transmission to see what needed to be fixed and it would cost 1100 to put it back together unless I went with their services. I told them to do it and they charged my credit card even though I didnt sign a receipt or anything.I get a call later in the day and they say it needs to be completely rebuilt and it will cost 4500 for the transmission and transmission mounts. Now this is a 2009 Mercury Mariner which is only worth about 3,000 but is in otherwise good shape so I told them to fix it since I did not want to pay the 1100 fee for them to do nothing. That was on Friday and they said it should be done on Monday but now it is Tuesday and I called them and they said it would be tomorrow. So I am still out of a car even though it was supposed to be done in a couple days which is now 6 days. Do you think I got ripped off and is there anything I could do help my situation or am I stuck with it?  <response>: Im surprised they gave you that short of a turn around time for it. Fixing a transmission isnt a quick process. I wouldnt be surprised if its not done tomorrow. Hopefully they follow through but it just seems quick.I cant speak for the cost for your specific car but it doesnt seem to far off. Transmissions arent cheap. I would recommend asking this in rcars. 