Haven't found them on the app, and never got the email. Anyone that's been successful know how you searched for it? I tried new arrivals and clothing and costumes. Made sure I was signed into the app as well.
I put passholder into the search box on the app. I agree that this may be a stocking issue. I thought I'd missed the party shirt when it showed only small available one day and then the shirt was gone entirely the next day. Kept checking and found it back a few days later with all sizes available. Keep checking!
It makes me happy that they're starting to sell these through the app. (Hopefully with experience, they'll start stocking more.) It's always unfortunate for people who visit later when they're sold out in the first part of the festival. Hopefully they'll add the passholder pins!