I went to a pep boys in Trussville Al . I went to ...

I went to a pep boys in Trussville Al . I went to have a serpentine belt placed on my vehicle . I took my vehicle in at 1:15 PM. The tech came back to say I needed an oil pressure sensor .. That part cost $12 -$22 at most (Google it ) they wanted to charge me a total of $369 for that part and the belt .. I decided to pay for the belt only ( which they charged me $169.67) . When I decided to leave . I saw my car up in the air on the rack .. Long story short they tore up my crankshaft pulley and didn't even put my panel on the underside of my car correctly . I'm currently trying to get to the bottom of this with the corporate office .