but I was not aware that hobbyists had them...only providers. It is on our profiles, but I don't see any when I hit your name or anything so I don't think hobbyists have them. She may have meant your handle, not your ID.
All you have to do is view any of your reviews and your member number is right below your handle. If you have asked to be notified when your favorites get reviews, they email comes with your ID in the subject line.