I didn't even check to see if mine was hooked to a store. I just check 'reservations' and its there.
Figured it out. The iPhone with the app is signed into my original iTMS account, but when I got pushed to safari to reserve the phone, it used my iCloud (which was migrated from .mac). Signing into the iCloud account for the "stores" on the phone showed me the reservation. Phew! Thankfully it's the model I want. I'll drive the extra 30min! Don't want to mess with this anymore.