I invited a friend to the game but i didn't received the boss coins.
I sent him a link, but after he entered in the game, nothing happened.
Boss Coins not received
@Lumust Hi mate,
In order to receive the reward for inviting friends they need to join OSM via the link they got from you. If they join it differently, you won't receive any reward.
Besides that, there's a limit of 10 invites on this offer, so if you've already got 10 rewards, you won't receive any more.