If your new to this term your not alone. Phishing is an email posing as to be from a real company using a false url. Normally seen with ebay, pay pal, citibank ect.
The usual scam is the email claims that your account will be suspended if you dont update your information.
What the phisher does is collect your user name and password to gain access to your credit card and personal information.
Prevention: Open another browser and go to the original website to see if you did recieve an update to your account.