Include the location of your Unlock Request in the “Subject:” line of your message post
https://www.waze.com/editor/?env=row&lat=51.25831&lon=-0.05983&zoom=5&layers=997&segments=121555818
Amazingly this slip has hitherto not been closed for the Managed Motorway project - but no more - see item 13 here: https://www.waze.com/forum/viewtopic.php?f=390&t=68193.
In my AM area, I’m level 4.