Hello! You have heard or used our referral system during pre-Sale. You had a possibility to get % of WTR from token purchase of the person you invited to the project. We renewed this system, so all the referral partners will be able to get % in ETH from the amount of tokens bought by the referral. To learn more,please, read our article on Medium
https://medium.com/@gastery_app/get-paid-for-promoting-gastery-ico-2d452c098850