this review comes just when last night I kept hearing a loud clicking sound when I raised the seat and again when the seat was lowered. I got off the chair and lowered and raised it several times standing to see if I would be able to see if it was hitting anywhere that I could see. The last time I tried it froze in the upright position and wont move. Now my review has gone from a 5 to a 2 since there is no way to use it. I purchased the 3 year insurance so I would like to know what to do to get it working again. I didnt receive any policy or instructions on how to put in a claim. Please Help! I look forward to your prompt attention. I have always been pleased with my relationship with your problem solvers in the past. Thanks, L. Ekl