I've seen a few comments coming from people - posted on the main comments page (obviously very much off topic) - but the following should answer their question/accusation/rabid ranting. ;p
http://support.tallemu.com/vbforum/showthread.php?p=122894#post122894
Got an email saying that your license expires, but should be good until Jan 2011?
We are getting a lot of emails from confused users that are getting an email stating that their license is due to expire soon, when their license should be good for quite some time.
In nearly every case, this has been due to the user having two licenses; particularly those who took advantage of the Giveaway of the Day promotions in May 2009 and January 2010.
If you took advantage of the May 2009 Giveaway of the Day promotion, then you will rightly be getting a notification that that license is due to expire soon.
If you then took advantage of the January 2010 Giveaway of the Day promotion, then that would have provided you with a separate license which will still be good until January of next year.