I've called a couple of times for other things, like adding an extra day to our upcoming trip, and I've asked whether or not any discounts were attached to my name. They checked both times, and said no

I'm really not sure whether the discounts are under your name, your email, or your address, and I didn't really feel comfortable asking. I'd like to know, but I can't see myself asking them to check 5 email addresses while I explain about my hopes and dreams for a pin!