A few things tell me that this site might not be legit. First of all, as I browsed the site, I noticed a wide variety of links to verification services such as Verisign, Trust-e, etc. When you click on some of these links, your browser will take you to the main page of the verification company, when it should actually show you a page that verifies "Mobile-World"s info.
Also if you click on the "Trust-E" link, you come to this page:
http://www.truste.org/pvr.php?page=violation
If you check the order site,
here they only accept WESTERN UNION for those not in New Zealand and the order site is not showing up as secure (encrypted) in my browser.
-A lot of red flags, hope this helps.
-Will