In the beginning of April 2017 I sent an email to Leica USA repair department requesting a sensor replacement for my M-9. They had already approved it a year ago, but I asked them to postpone it because they said they were having problems with sensor sourcing. I did not get a reply for several weeks after emailing them April 4, 2017. I emailed another department and got a reply from a Mark Brady telling me to email Roxana Lynch directly, which I did. She is supposed to be in charge of service. It is now over a month since I sent 5 emails to repair, Roxana Lynch and Leica-USA and made two phone calls, and still nobody at Leica will answer an email or return my call regarding service. I find this odd in the extreme and I wonder if this indicates problems with Leica USA? I'm now a little reluctant to even want to send my camera there for fear I will not get it back for an endless span of time. Has anyone else had this experience with Leica?