I was randomly forced to do this about a year ago, gave them everything except a passport (Tried providing other doc but support is either bots or overseas), got rejected, and lost a 15 year old legitimate business account.

Could never find any explanation why I was targeted by this - it said it detected “suspicious activity” but I only ever interacted with recruiters, and only occasionally. Supposedly it is deleted after if you don’t go all the way through, but I do not believe it. This data ends up in very weird places and they can go fuck themselves for it afaic.