The ticket you made was at 07:49 AM my time, and you post you want a refund at 8:25am. There will be times when nobody is around to instantly help you. If you search around the forums for this issue, you would probably found out that trying another browser to activate the key will do the trick. As for the crashing, did you follow all the steps in the tutorial section.
http://mmominion.com/Thread-Tutorial-Ins...-and-Setup
http://mmominion.com/Thread-Tutorial-Ins...-and-Setup