I realized I hadn't received anything in some time, so I went to the website, and signed in. It then said they were having issues with my e-mail address and I needed to confirm it before I could receive any more surveys. They made it sound as if I had been contacted about this but I'm sure that never happened.
Seemed to work just fine for the previous 11 years
Anyway, if it seems like you haven't received anything for a while, sign in and see if you get the same message I got.