let me chip into this , with a bit explanation
well first , the iban set is as sales of the elecronic items, and i have even site for it , so sometimes i need to show abnk what person bought, (thats rarely) in most cases are drons or cameras or similar stuff, thats the first part, that is sent to different email when needed,
second part on id or birthday , again in most of the cases dont need any info, but that sometimes i need it , and from all those request i need is that 80% of those payments are done with revolut, when done so bank needs some proof that is not money laundering and they ask for id, id with name and birthday works , without other details
why is that with some revolut, i think that revolut is connected with crypto, and second some memeber s are not fully registered, so bank needs own protection, nothing to do with anything else,
another thing to put things at ease , none of the things are saved, i had bank ask me 3 times for the same person within 3 months
when paid from other banks that happens very rarely, if so probably those banks are similar like revolut or not fully regstered .
well i dont like to be it difficult either , but it is like that, its getting harder with watches and payments and similar things, on the end of the day there are counterfait items.