Someone trying to hack my account?

So I just decided to check my email for the first time in a couple weeks, and I noticed several e mails from [email protected]. I'm not sure if this is just someone trying to get me to give them my info, or if someone is actually trying to change my password. The messages all read:

"Greetings!
This is an automated notification regarding the recent change(s)
made to your World of Warcraft account. Your password has recently been modified through the Password Recovery website.
*** If you made this password change, please disregard this notification. However, if you did NOT make changes to your password
we recommend you Login verify your password:
http://www.worldofwarcraft.com/
If you are unable to successfully verify your password .
using the automated system, please contact Billing & Account Services at 1-800-59-BLIZZARD (1-800-592-5499) Mon-Fri, 8am-8pm Pacific Time or at [email protected]. Account security is solely the responsibility of the account holder. Please be advised that in the event of a compromised account, Blizzard representatives typically must lock the account. In these cases the Account Administration team will require faxed receipt of ID materials before releasing the account for play.
Regards,
The World of Warcraft Support Team Blizzard Entertainment"

I can still login to my account so I know my password hasn't been changed, and I'm thinking it is probably due to my authenicator. Any advice on what to do would be much appreciated.

Edit: I also just noticed one saying that I received a 3 hour suspension on my account and the e mail was received while I was at work and had been for several hours. What is going on here?