Business ProfileforAAMCO Transmissions

I agreed to pay this company $5,200 for a rebuild of a transmission on my son's 2012 F-150. When I dropped the vehicle off I had no weird noises being made and NO Check Engine Light on. Owner told me there were just codes for the transmission. When I picked the vehicle up on 9/18 I let my son drive it back to College. He called me later letting me know he almost got into an accident because the car started to malfunction. Mechanic forgot to refasten the drive shaft and it came apart when he was driving. AAMCO admitted their negligence and said they would repair anything that was damaged because of this. They did not. Fuel tank was dented, * Joints were bent, Drive Shaft broke and exhaust system was damaged. Client delayed getting the truck back to me until I got their corporate involved. Picked vehicle up on October 2nd after I was told all repairs were made. 10 minutes into my drive and the check engine light went on and vehicle started making a noise I had never heard before. Brought it into a mechanic I have used in the past to run a diagnostic on it and he told me AAMCO replaced the drive shaft they broke with a used and bent one, the * joints weren't fixed, fuel tank not fixed, exhaust system wasn't fixed and the work they did on my transmissions is said to be terrible. Hoses weren't attached and other parts were just hanging and not clipped in. He also told me he was going to install a new drive shaft and never disclosed it was used parts. My truck is still not safe to drive and it appears the transmission wasn't fixed. I would like a full refund for the transmission and have him pay for the damage to my car caused by their negligent acts. AAMCO Corporate states this is a franchise so they can't get involved. My son hasn't had his vehicle for two months now and I am paying for a 2nd rental out of pocket. Pictures below are of the drive shaft two hours after we picked it up from their location. Please help!