My best guess is that the survey url has a "srid" section of it which should be a unique identifier.Boris Winter HIT: ''If anything goes wrong with the confirmation code, please submit the srid from the URL.'' What exactly are these people asking for?
https://www.amazon.com/Schrute-Brea...221360&sprefix=the,aps,180&sr=8-1-spons&psc=1
So for example, there's a "ref=" "?crid=" and "qid=" identifiers in this URL that'd link back to where the link was clicked from and what was searched for.