When someone who joined with your referral link completes a task, 50% of the reward they earned is credited to you as a bonus.
This is NOT deducted from your invitee's earnings; it is added on top.
There are no tiers, a single rate applies. The referral screen shows your total referral earnings and your withdrawable balance.
Abuse control: if your invitee signed up from the same network as you, that referral earns no bonus. This prevents collecting bonuses by inviting your own second account.
The bonus is half of your invitee's earning and is calculated with up to six decimals.