Business ProfileforUniversal Service Center

Dropped our car there after a check engine light came on and car started shaking. This has happened to us before with the car and it was always a spark plug/coil and we would replace it ourselves. This time my husband decided to drop it off here during the night and then we called them at 7am when they opened to explain we thought it needed a new coil and to let us know what the computer said before doing any other work as we can just do the coil ourselves. We didn't hear back from them at all until they gave us a call at 1:14pm giving us the breakdown on everything they did to our car and how much it would be and that the car was ready for pick up. I was in shock because they never called us prior to give us an estimate. They just worked on the car thinking it would be okay I guess. They replaced a spark plug, coil, and also cleaned the throttle body (WHICH DIDN'T EVEN NEED TO BE DONE) and all of this came out to a total of $520....When we go to the shop I asked to speak to the manager (who was actually the guy that worked on my car supposedly) and the man starts yelling at me and disagreed with me saying that he called and we said to fix the car.....we never once got a call from them giving us a break down on anything before they did the work. What if we didn't have the money to fix it?? On top of that the itemized bill shows at 10:01AM the man called my husband and that my husband **** gave the approval to go ahead with the job. Only problem is we never got a phone call at 10:01AM and my husband never once spoke to the guy. I can prove they never called us to tell us how much it would be by our official phone logs from ***** In the call logs it shows I called at 7am and they did not answer. I called them again several minutes later when they finally picked up. And then I don't speak to them again until they call me after 1pm to tell me the car is ready for pick up and they went ahead and did the work without approval.