Kept my good lens even though i asked for it back. Replaced it with one with a defect. Told me I had to pay to have it returned. Went back and forth, ended up disputing with CC company and got money back. "Customer service" exchanged petty emails as recently today where they attempted to rub it in that Chase paid them for the services, they even included a screenshot. One email when I told them i was disputing the replied, "Good luck". The only decent thing was their willingness to negotiate cost, which they did at the beginning and when I complained. Never use them again.
Recommendation: Don't use them. I used them by accident, never again.