Hi,
My name is Igor, I have 12 Microsoft MVP awards. It's a pleasure for me to help others and I'll do all my best to help you. I'm sorry you have a problems.
It is easy enough to become a Microsoft partner, you may try to register as a partner too.
I do not believe this site is fair site, because it sells Windows 7 (download), thou Microsoft stopped this selling a years ago. Seems they sell a keys obtained by semi-legal way.