Yes
The price on waves DEX is reduced by 10% to give you 10% additional tokens

Come on you wanna run a big investment fund and talk about super experienced team members, but the info you provide is quite limited about anyone of you. I'd say you should come up with much more info and success metrics that substantiate your expertise in order to gain investors' trust. This won't work.

The ExindexTeam, just decided to reward anybody from our community who is able to attract investors to contribute to our ICO will be rewarded with 10% of what the investor buy in EXD tokens.
Requirement:

The investor must signup on www.exindex.io
The must make deposit and send support ticket to confirm transaction
The referrer must send a support ticket www.exindex.io quoting the username of the investor invited and state his own waves wallet address. After transaction has been confirm the referrer will also receive his own tokens.

I do not understand you well
you mean to say referral?
If yes, how do I get the referral link?

No need for referral link but you can talk to people about it and convince them to invest, get them to signup on the site and make deposit. Once that has been done just go to the site and send support ticket stating the investor's username and your waves wallet address. When we confirm the transaction you will receive your 10% immediately