Just to add a bit of info;

Spelinspektionen set a complex structure for operators, if you're from Sweden you probably know the strict guidelines that a casino operating in Sweden needs to follow, from limited bonuses (only one-timers) up to KYC verification through BankID. Because of that, all Swedish players are marked red in most operator circles, and have a different treatment from everyone else, which might explain to you why other countries have different KYC documents available under their drop down menu. You're in the same bucket as Dutch, Polish and German players unfortunately.

I think you'll need to go through a manual verification via e-mail, the only thing that comes to my mind with the VISA thing is that you've maybe used a VISA card to play and they are asking its details, but it's a crypto casino so I'm not sure about that.