No offense to Kimber but to "loose" a firearm for roughly a month when the customer's been in regular contact with them sounds just like a story that happened to me when I was in the ski business years ago. A customer had returned a pair of xc skis that had delamed and after getting a r.a. I sent them back to the company. after checking back several times the rep got a bit short because the problem had to be that I made a mistake since the skis were clearly not there. After getting the tracking info from ups I called and talked to the same rep who had the same attitude... That is until I pointed out that not only were the skis at the company for the time that they couldn't find them but that the rep I was talking to was the person who had signed for the skis.
They may not know how to deal with the problem and are stalling until they can either find a way to get the shotgun repaired or replaced.
Parris
