Good luck,
this has been a problem for the last few years and some people even flew the miles before December 31, still no change of status til March 1. It has to do with the last sweep of the year and when the miles hit your account.

http://www.flyertalk.com/pasttalk/ft...ML/004186.html
http://www.flyertalk.com/pasttalk/ft...ML/001166.html
http://www.flyertalk.com/pasttalk/ft...ML/001168.html

There are other posts too, but I am not too adept at searching the archives.

(Edited to fix my English.)

[This message has been edited by OB one (edited Feb 04, 2004).]