It is very simple. First of all you need to know what is referral - it is person that use special referral link to join paid to click or any other get paid to programs . When you use our special link you are now our referral. It means that we earn some percentage of your earnings in paid to click programs. Now while you know what is referral we could move ahead and find out what it is refback. As you already know we get some percentage of your earnings in paid to click programs and we want pay you back this money, yes you are right we want give you back money that your earn for us. Isn't it great? You made something that you already do - click in ptc programs and now you get extra earnings just because you joined using our reflink.