Referring

I referred a friend and they finished the fifth task to change their name and they referred me, but under my tasks it says that I was never referred. Any help is appreciated.

They have to get to Level 4 For refer task 1. And Level 7 for refer task 2.

Once they acquire third baron you'll recieve a leter entitled "refer bonus," telling you that you've completed the task and can claim your reward.

Also, when they reach level seven you get 20 coins.