....
3.13 You warrant not to use any form of VPN or other methods or program fit to hide your IP or your state of origin. Users or customers found to use a VPN without the companies consent will be excluded from all services on the website, and all remaining funds will be frozen indefinitely. You acknowledge that you are solely responsible for all losses that might occur to you over your VPN usage without the companies consent, including but not limited to financial losses and the loss of your account on the website.
OP while you played on their website, you've agreed to their terms and conditions. Haven't you read them?
It's hard to use this as defense since they already posted in their ANN that using VPN was tolerated. It's like saying it's okay to violate parts of their terms and conditions.
It doesn't matter. This does not mean that the player did in fact agree to these terms and conditions upon registering on this website, and thus he is solely responsible for his loss, as it says in their terms and conditions.
By the way, there was yet another similar case with Stake, they were advertising they don't do KYC, and a player had his winnings frozen because they wanted him to do KYC:
https://bitcointalk.org/index.php?topic=5390206.0 and he couldn't do that because he was playing from a prohibited jurisdiction.
This case did not get support from the forum.
You just can't fool anybody that all of the following messages supporting the player are not because he was a victim of a scam but because the scammer is not a sponsor on this forum, contrary to other websites that are scams but that are also sponsors.