Hey Ross!
Glad you and your partner are loving your accounts 
In the vast majority of cases you’ll get your PIN within 10 minutes, although it’s often much quicker.
You’ll need to submit a photo of your ID and a video (this is just in case someone has access to your phone and tries to recover your PIN - we need to make sure it’s you), but if you don’t have your ID, just give us a shout over chat from the Help tab and let us know; we can look at alternatives and make sure you aren’t stuck without your PIN 
I’d also second @anon95680666 advice and say you should set up Touch ID to make things even easier.