Is there a way to see your requsted waitlist on the MS website or is it just a telephone request which is not listed on the website like upcoming vacations are? Sorry if this is a confusing queston.
If your waitlists works, you will see the new reservation on the website. That is what posters mean when they say they check the webiste to see if their waitlist worked.
As Bobbi posted, the waitlist requests themselves are not on the webiste.