My WoW account just reactivated by itself...

I purposely let my account freeze the last time my gametime ran out, because I didn't really feel like continuing the game. It's been over a month now. I cancelled my subscription.

Lately I've been considering coming back to the game, massively tempted to play my Warlock again...

And this morning when I checked my online bank statement, I noticed a suspicious payment of £8.99 to none other than Blizzard... How could that be? I am 100% sure I cancelled my subscription, I even saw that my status was frozen when I checked Account Managment.

Does Blizzard save your payment information even if you choose to cancel? If so, it could be that somebody found out my password and just used my card information to buy more time. :S But I don't think the info gets saved.

Maybe this is a sign from above!

PS: does anybody know the what the newest realm to have opened is?