I'm creating the accounts in Meta Business Suite, so I would have a recourse with my main personal account which can be linked to some adspend, so I'm assuming it will have better support channels than accounts created through an end-user interface.
I used a different email which might have prompted a security review, it was instantly blocked "because it looks like it was created with unauthorized automation", I just clicked on submit a review and it asked for a phone number to verify with a code, and then an ID. I think this is pretty standard, the initial block reason can be whatever, it just works as a de facto way for Meta to manually approve accounts. There's a lot of spam, and scams going on, so it makes sense that they are implementing controls, I for one am happy to differentiate myself from people whose job it is to make multiple accounts and promote fake stories and businesses to scam the elderly or stuff like that.