Referral is a system that allows you to invite a friend, by your referral code.

Where i can found my referral code: you can found the referral code in your account management.

For Example:

How to use the code:

asks your friend to written your referral code when he register his account.

So what referral do:

You will received 1 premium point for every (100 LEVEL) gained from a friend who used your referral code.

What if he donated:

You will recieved 20% bonus of his points that he donated WORKS WITH (PayPal)

Should I have to write any referral codes while I register?:

NO!! you dont have to written any referral code IF you don't have any referral code. you can let it empty while you register your account.