i'm in the pittsburgh area, who is the shop in question? $3000 for labor is f'n rediculous. i would try to work it out with them, because you don't want to be on bad terms with someone who has your car...also, i wouldn't tell them you are going to dispute it with your cc company just yet. that will put a sour taste in their mouth. i don't know all the particular details, but if all said and done and they still won't refund your money, i would dispute the charges with your cc, file a claim with the BBB and PA State Attorney General.