New customer - with new phone - but no phone number?

I’m a new customer… my phone arrived amazingly fast - I ordered yesterday and just got the phone now.  But the problem is that I don’t have a phone number.  So I can’t register for the Self Help options to be able to get the phone set up and my existing number transferred.

I think there is supposed to be an email with my new phone number but I haven’t gotten it yet?  Any way to figure this out?  The chat bot doesn’t like any of my questions!