Where can I find my Playstation Plus expiration date?

I have a Playstation Plus account in the US market since July 2010. I purchased a whole year and I believed that it will expire around October 2011 but even today in december the wallet was not charged with it.

Where can I find my Playstation Plus expiration date?
Is somewhere in the market or in some web page?

Thanks in advance.


You can see it under :

Account Management -> Transaction history -> List of services -> Playstation Plus