Verification of documents

Has anyone ever had to submit a photo of themselves holding thier documents I've been told by one mob that I need to do this

Hi, you don't have to worry It's a normal procedure and some casinos simply require such photo from players. Casino has a proof that it is really you when holding and showing the document. Players ask this often and it's totally ok. But beforehand, I would rather check the reputation of the casino, so that you know where you are sending the documents and whether it is not dubious casino.

Oh ok thank you