MI pickup man

Hi Guys, I just picked up one of the last 2014 Chevy Silverado's at my local dealer. The build date was Jan of 2014 and I noticed rust on the frame exactly like everyone in this post. After complaining to the dealer and sending info over regarding the TSB you all referenced GM will be completely removing the frame and re-coating it. I'm a little nervous that they will never get it back together properly, Has anyone else had this done? How long did it take? Any issues? Thanks