GM Requested OLD / REMOVED Recall Ignition Parts

To our surprise we received two parts requests late last week. GM wanted the parts we removed from two lock cylinder recalls.
I have only been doing this for 35 years, so I haven't seen much. I have never before had GM request removed recall parts. I have no idea why they would want them. I would certainly like to believe all the engineering has been completed by now. I hate when we have to go back and re-recall stuff. Here's hoping they simply don't trust us and really want to see if we replaced the stuff.
So consider this a warning - KEEP THE PARTS YOU ARE REMOVING FROM THESE IGNITION RECALLS - THEY MAY ASK FOR THEM BACK. The two they asked for were not our first ones. I would guess we have done 20+ prior to the request for two.
I have only been doing this for 35 years, so I haven't seen much. I have never before had GM request removed recall parts. I have no idea why they would want them. I would certainly like to believe all the engineering has been completed by now. I hate when we have to go back and re-recall stuff. Here's hoping they simply don't trust us and really want to see if we replaced the stuff.
So consider this a warning - KEEP THE PARTS YOU ARE REMOVING FROM THESE IGNITION RECALLS - THEY MAY ASK FOR THEM BACK. The two they asked for were not our first ones. I would guess we have done 20+ prior to the request for two.