Q: A multiplayer game says "waiting for the other player" on both me and my friends device.
A:Sometimes information get lost on the way. You can solve this by tapping the timer of the game and the the "reload" button in the top right corner of the alert box. If that does not work you need to clear the local game data by deleting and reintalling Polytopia.
Q: Hey! All my purchased tribes just disappeared!
A: Not to worry, they are around there somewhere.
On iOS just tap the "restore purchases" link at the bottom of the tribe picker screen.
On Android they should restore themselves if you are online when entering the tribe picker screen.
Make sure you are using the same Apple/Google account as when you made the purchase.