You can see how many people you have referred under the menu Recruit Clickworkers. You will receive 5€/$, once your friend has been paid 10€/$.
If your friend appears as your referral, but you didn't receive the bonus yet (see Total Earned Bonus), it is most likely that they have not earned and been paid at least €/$10 yet. In this case, you just need to be a little patient as you will receive your bonus eventually.
If your friend used your invitation link to sign up, but does not appear as your referral, please ask them to contact us by creating a new support ticket and confirm that they have been invited by you. Our team will then check the requirements and make a manual booking to your Clickworker account.