私は文章を読んだ限りでは
・公式WEB登録で登録者に100万IQT山分け
・友人招待で2IQT
・友人招待人数上位20人にインセンティブ
この3つのキャンペーンが同時に存在しているように思いますが（英語苦手なので誤りあれば申し訳ない)

以下WEBサイトより引用
「Share free 1,000,000 IQT reward by registration!」
When ICO starts, all people who have registered on our website successfully will split our 1,000,000 IQT reward together.
Your reward will be distributed to your wallet after our ICO.

「Free IQT reward if you invite your friends」
All the people who registered in our website will get an Invite Link. You can copy and send it to your friends.
If they register successfully through your link, you will get 2 IQT for free.

「Invitation Ranking」
We will have a ranking list of all registers according to the number of friends you invite successfully, and give rewards for free to the top 20.
No.1 : 100 IQT for Free
No.2 : 70 IQT for Free
No.3 : 50 IQT for Free
No.4 ~ No. 10 :  20 IQT for Free