If you are looking at getting an Xbox Live Diamond Card, be careful. It seems that a typo on the website, www.xboxlivediamond.com, instructs users to e-mail a non-Microsoft owned and operated e-mail address if there are problems signing up for the card.
Step 3: Notice the error message that says: “We’re Sorry!!! That GamerTag has already been registered” Notice the following instructions: “If you believe that someone else has registered with your GamerTag, please send an email to [email protected].”
Step 4: Notice that xboxdiamond.com is registered with domain squatters. Oops! Hope nobody sent their Xbox Live account information (password, credit card information) to that email address! We further hope that whoever’s receiving the deluge of emails isn’t impersonating Microsoft and soliciting this information from Xbox Live customers.
Since the domain was recently listed on eBay, who knows what the squatters are going to do with the deluge of mis-registered gamertag emails. We hope Microsoft fix this blunder quickly–it doesn’t exactly instil faith in the Diamond Card service.
Source: Joystiq