i already asnwered, that if they want to see passport, make another video call. But they ddo not want to make another call. They say that i need to find "plausible explanation" why i do not had passport.
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Have you explained to them that the reason is simply you're not home and didn't bring your passport at that time? I can't see yet what's written by both parties on casino guru, but I hope what you write is that explanation. And if it isn't, then I suggest you to try explaining the situation to them. Make it simple and clear, they have tendency of misintepreting sentences and statement.
Speaking of which... I just read their ANN thread, I guess they never cease to amuse me. Are you also interested on explaining what's actually happened with your case on their ANN? The snippet of what they said about video call is this,
[...]
We are glad that, after continuous persuasion by both us and CasinoGuru, he eventually conducted the official passport verification offered by the Latvian government.
However, during the subsequent video verification call (which he refused to do until CasinoGuru intervened), he refused to show his passport. As a result we have to conclude the verification call as being not successful.
[...]
while the reality is this,

I don't recall any reluctance of video call from your side. Their side? Sure. But yours? IIRC you're more than welcoming the idea of video verification. I think everybody closely following this thread and case knows what actually happened with that... persuasion.