Was told that I needed a AC compressor and the par...

Was told that I needed a AC compressor and the part was on back order because I have a new car. The guy to me when I checked out to pay for my diagnostic fee that if I bought the part online and bring it in they would put the part on for me. Long story short I got the part made the appointment and they told me they don't put parts on that customers bring to us. Waste of time and money and I will never get my car serviced there.