Daily bonuses are issued to eligible users every day at 12am UTC. You must reach Bronze to become eligible.
Weekly bonuses are issued to eligible users every Thursday at 11am UTC. You must reach Bronze to become eligible.
Monthly bonuses are issued to eligible users on the first Friday of every month at 12am UTC. You must reach Silver to become eligible.
Note that bonus amounts are derived from volume and the edge of games played. If you did not receive a bonus, this likely means there was not enough volume to generate a reward.