Have you logged into your account and checked the number there?
On the first page will show what programs with versions you own plus the registration codes including the Upgrade codes.
Did you reply to their email to tell them it didn't work?
When you say you emailed the was this using their Support Email form on the Support page of the web site?
Don't give up after such a short time, when all the new features are so cheap compared to anyone else. You will not find a better program that Hoster and it is getting better. Beta testing is on going for the next release that will add even more and for those who own any of the new version 4.0s it will be a free upgrade.