I don't get plot missions.

[Seigaku]

So, the only badge i have for completing a plot mission is "take me to your leader" after that i don't get anymore missions and Im on August 1 2010, and my uplink rating is Expert.

On another user where i completed the game the date is July 25 2010

[orillian]

Some of them are not emailed, if you miss one or two by mistake than they can be re picked up in the uplink mission server. Unfortunatly it happens sometimes.

[Seigaku]

They aren't in the uplink server either

[orillian]

Probably missed them, as they only hang around for a short while. If you wait too long they are gone. Have to keep more of an eye out.