I bought an Osprey scope at Knob Creek from an Osprey dealer. I was looking for something for my 50BMG and he claimed that he had the scope I needed and would guarantee it. The glass was actually fairly good, but my 50 turned it into a pile of scope parts. It's sitting in a box waiting to go back to Knob Creek and see if his guarantee is any good. Never tried their customer service because it's a Chinese scope.
I've seen these guys set up at other large gun shows, so if you don't get anywhere with CS you might try just taking it back to them at a show.