Valve Cover/ Misfire

I took my Highlander to a local mechanic and they told me it needed a new motor. Phil told me it just needed a valve cover. I was very happy to pay $1000 instead of $7000. Fast forward a few months and our truck started misfiring. Local mechanic once again said it needed a new motor and Phil told me that I should have brought it to him to begin with. Well, I got it towed there and the next day he tells me it definitely needs a new motor. I was upset, but these things happen. I go to pick the thing up and he charges me $190 for the troubleshooting.... I really didn't know what to say. You would think that after charging me $1000 for a job that was pointless that he wouldn't pour salt on the wound and charge me for something I was told needed done in the first place. Ridiculous. Don't take your business here!!!