looks like at the moment we'll just have to see what the outcome will be on casino.guru. btw, I vaguely remember that this is not the first time I've seen a casino change its ToS and a gambler gets negatively affected by it sadly I don't remember seeing the gambler being able to get their winnings out of the gambling site.
anyway, I saw that you mentioned that they sent you promotional emails days before your account got locked, would you mind sharing screenshots of those too and putting those on the original post? also, I think you should ask casino.guru if winz.io can provide evidence if they actually made an effort to send emails to their gamblers about the changes that will happen on the gambling site's ToS, you can also try and specify if they sent you email about the changes that will happen.
That's a good point, or even someone here who is a player or even has an account on Winz.io, if they ever receive an email notifying them of the changes on their TOS, all players active or inactive should receive a notification through their emails changes in the TOS should be sent at least twice or notified their players through their social media or chat groups if they failed to provide that then they are going to lose a case.
The TOS update is very important if the casino is honest and the update is something that will have an impact on their players then by all means they should use all their channels to communicate to players that will be harmed by the changes.