Went in to have my window looked at, was given a d...

Went in to have my window looked at, was given a diagnosis that I needed a regulator, and that wasn't what I needed when I took it to two other places, when I asked can I get a refund on the diagnosis cause it was a false one I was told I could if I bought a receipt showing I had the issue taking care of, but now im getting the run around, plus I never received a call back, not good business