UPDATE: We're aware that some users appear to be missing the NX 20,000 that was distributed Friday evening. We will be investigating the issue further and will announce when further allocations are made. We apologize for the inconvenience.
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Hi everyone,
I'm happy to report that we have distributed NX 20,000 to players who were logged in during the Server Restoration period (August 17 - 21). We hope you enjoy and put the NX to good use - I'd get a Jumping in the Rain Character Card, they're so cool!
Please take note that some players were marked for ineligibility due to suspected suspicious activity. We will determine if these players are eligible for NX 20,000 after they have been cleared by our investigations team. Efforts were also taken to minimize the amount of "mule" accounts that received NX.
Once again, we sincerely apologize for the server problems as of late. We hope our efforts to stabilize the game over the past few days and provide meaningful compensation brings sunshine through the storm clouds into your Fantasy Life.
From all of us on the Mabinogi team, we thank you.
This process will take some time and players should see the distributed NX by 08/27/11.
Source: http://forum.nexon.net/Mabinogi/forums/1/8147312/ShowThread.aspx
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Sounds like to me if you don't get your NX by the end of Saturday 8/27/2011 server time or maybe at the end of tomorrow on Sunday 8/28/2011, you may be flagged for suspicious activity. That's just my theory anyways, don't take it seriously. xD