I went to Sears Auto Center in Ann Arbor, Mi on 1/11/13 at 11:30am EPA MIG000010302 FACILITY F-108110 for an oil change and tire rotation for the first time. The technician broke off one of the lug nut studs when taking off my wheel! They told me I have to pay for it and it was $91! I told the service advisor that I was not paying for it, you broke it and I want my car the way it was before i brought it here! I asked for the manager who eventually came out after about 20 minutes, who did not have a name tag on and would not tell me his name. I told him what happened and I told him I wanted the piece that broke off and he said they could not find it but would look. 15 minutes goes by and I see the service advisor and the manager at the desk and I said i thought you wrere looking for my part and they simply told me they could not find it! I said and you had me out here waiting?????????? When were you going to tell me. I pulled the manager off to the sode and told him not top talk to me like I was some stupid woman and he threw his arms up and said what do you want me to do? I SAID I WANT YOU TO FIX MY CAR! He said it was not his mechanics fault and i had to pay! I said you think I'm dumb but I knw exactly what happened.. your mechanis did not have his impat gun properly calibrated and put it on the lug nut and squeezed all at once and snapped off the stud! He would not admit it. I said i wanted to talk to his manager and he just tore off a piece of paper and said to call this number which he scribbled 800-549-4505. I walked away crying! I saw the servcie advisor and asked him who his bos's boss was and he told e it was the district manager and he was there now. HE WOULD NOT COME OUT TO TALK TO ME, HE LEFT ME OUT THERE! i NOW KNOW THAT THE MANAGER IS STEVE GRZESKOWIAK AND THE DISTRICT MANAGER IS WALT WILBERT. I said you would rather me walk out that door unhappy because you broken my car for $91 and have me tell 20 people and post it on the internet than ow up to the mistake and fix my car? HE WALKED AWAY! He did this in front of other customers! I left the store with only 3 lug nuts on my left front wheel, PRAYING it would not fall off.. now it sits in my driveway afraid to drive it!! Oh yeah, and I drove 20 miles just to get there! I do not hav ethe money to fix their mistake and I cannot drive the car and now cannot go to work!! THEY JUST ABANDONED ME!