Thank you for your reply and thanks for the warm wlcome!
No, it's definately not my only ID. I already provided them with my Drivirs License, Utility bill, bank statement and e-wallet account photo. But they asked for my health insurance, so I sent them a photo of it with the last four digits covered. For security reasons though, they asked for the uncovered version, so I sent them it.
I really regret it, but maybe it's fine?