I bought Tier 4 plan and would like to congratulate your team for building such a great app with wonderful games and full customization control of each part of the Game interface.

1) I would request you to kindly update the game URL logic. Presently, we have to create a new domain or sub-domain for each game URL, which is not practical. If I have 10 or 20 games active at one time, then I need 20 different websites or sub-domain for them. Instead of that it should follow the standard rule as you are using for your branding: i.e.
https://games.playzo.io/games/kitkat
So, it should be game.mydomain.com/gamecode
Please look into it on urgent basis to make it practical and enable broad audience, else we can use 1 or 2 games only.
2) Need to disable the game link when the campaign gets over & show a custom message or redirect to custom URL