Unprofessional, they didn't label any of my parts ...

Unprofessional, they didn't label any of my parts to indicate i was the customer who owned them. They said my brand new PSU was "missing cables" and suggested that I either buy a new PSU or return the one i gave them. When I went there to pickup the PSU I was disgusted with the state that my computer was left in, there was other customers parts on top of my desktop that left scratches on my case. They didn't realize that I brought a bag full of cables with me (when I first brought it to them) thus making the whole ordeal take much longer than needed (the cable that they needed was in the bag). When I went to pickup my computer today they forgot to give me my cord back that connects from the outlet to the PSU, so we had to drive back form my house to get it (didn't even get the one i gave them back they just gave me a new cable they had in a bag). After setting up my PC when i got back home for the second time I found out that my wireless receiver for my mouse is missing. Hopefully tomorrow I'll be able to get it back from them, however I highly doubt it because they're very disorganized and unprofessional. I would not recommend anyone going to this repair shop, I'm very disappointment with the quality of service I got for a $100 diagnostic.