A2Z Towing Services

So girlfriend wanted to sell her old car I found A2Z towing they right off the bat it seemed shady the tow truck driver didn't say he was buying the car until the end. Had my phone his buddy they WAS buying the car we agreed on an amount but I said I needed to talk to my girl friend to confirm. So this whole time. Thought it was the other guy that was going to buy it and we agreed on an amount over the phone. Right when the bill of sale was signed He send a lower amount and took off.