Last night, it was wanting a phone number and would send me a couple of codes. Every one that i entered failed. I then went through the process again, and the validation mode changed to email instead of phone, which I thought was very odd, almost like they deployed new code in the meantime. It is validating by email for me, no longer mobile number and sms code authentication.

Me either. Tried many times.

I think we just need to be patient and keep trying. It is probably getting completely hammered. I work in software, so I can only imagine what this much hitting a system all at the same time would do. I would imagine they are trying to tune things in real time to handle the load.