I sent my son a buddy pass and when I go to the app to set it up for him is says, "We've sent an email to your parent. If they say you can join Stadia, they'll help set up your account." It's been almost 30 mins and I have yet to receive the email. How long do I have to wait for it? Should it have been sent to me already? I have looked in the spam folder and it's not there.