#2 - Aug. 26, 2010, 4:04 p.m.
The whisper was indeed a phishing attempt, Yomomasofat. We have an awesome support page about phishing whispers, how to tell if you are being whispered by a Blizzard Representative, and how to utilize the “Report Spam” feature which you can find here:
I received an in-game whisper telling me to visit a website to claim a free reward. Is this a scam?
http://us.blizzard.com/support/article/30829
And thank you Kottonkandy for the information as well. :)