What would you do?

[HMBeaty]

Ok, this shop has my vehicle and is pretty much trying to screw me however they think they can, but I know better . SO, I've been keeping tabs on who does and says what and have pretty much writing up a report (which you will see below). Now, my question is, if you were in my situation, what would you do?

Gary's Transmission - ****
Hillard Auto & Truck - ****
GMC Dealership - ****

18 AUG 2009 - Had to be towed from NC to VA due to what I thought was a transmission malfunction since my vehicle (2001 GMC Jimmy) got to around 60mph - 70mph and started shimmying and slowing down and eventually wouldn't go over a few miles an hour.

19 AUG 2009 - Towed to "Gary's Transmission" on thoughts of a transmission problem.

20 AUG 2009 - Called "Gary's Transmission" for a follow-up and they informed me that it was not a transmission problem and they said it was the "Mass Air Flow Sensor and a couple other parts" but did not specify what the others were. They recommended my vehicle be towed to "Hillard Auto & Truck". I then called my warranty company "Tri-Star" to see if I could have my vehicle towed from "Gary's Transmission" to "Hillard Auto & Truck" under my Roadside Assistance, which was approved. I then called "Hillard Auto & Truck" to inform them what was going on with my vehicle and that I was having my vehicle towed from "Gary's Transmission", to their shop so they could look at it and see what needs to be fixed.

24 AUG 2009 - Called "Hillard Auto & Truck" for a follow-up to see if they found what was wrong with my vehicle, and they stated that "We replaced the spark plugs, spark plug wires, and the ignition coil is being replaced", which I never authorized nor signed any paperwork authorizing them to replace those parts. I then stated "so it was mis-firing?" and they said "yes, very badly".

25 AUG 2009 - Called "Hillard Auto & Truck" for another follow-up and they stated "they're doing a major tune-up on it now to clear the codes from the engine", which again, I never authorized nor signed any paperwork authorizing them to perform this work.

26 AUG 2009 - Called "Hillard Auto & Truck" for another follow-up and they stated "both converters are bad and need to be replaced which your warranty won't cover and is around $800 - $900 so you can call your warranty company and ask them about why they won't approve it". I asked "is it driveable?". They then stated "no, it won't go more than a few miles an hour", which it was originally brought in there for. I then asked "is it was the torque converter or catalytic converter?" and they said "the catalytic converter". I then stated "you said BOTH?", they then stated "yes, both". I then called the GMC dealership and asked "is there were one or two catalytic converters for my vehicle" and they stated "there's only one for your vehicle"