If I advertise this game to others, will I receive something?
If you give someone your recruit link (found in Account/Recruits) and they sign up for the game, they become a recruit of yours. If any of your recruits upgrade their accounts (or someone else upgrades it for them), you will be given a bonus of 10% of your economy in credits, which is given at 00:00 server time. The 7-day trial upgrade does not count towards this bonus. The recruit must also join the same game server as your recruit link account for you to get the bonus.
I have recruited a friend to game, but he/she is not displayed as my recruit.
A player must join the game by using your recruit link for them to become your recruit, and in the same server.
Can I request to an Astro Empires staff to change a player to be my recruit as I told him about the game?
Sorry, no. He/She must join using your recruit link, or will not be your recruit.