Fill in the form and explain what happened. As long as you provide all the info you can about your order, they should be able to help you. Probably not until next week, though.
I ordered the product and printed the order page (with my order number on it). I downloaded the Vegas Video and DVD Architect jsut fine but the email it sent to me my serial number was deleted by Hotmail. I have the order number and went to the shop link and clicked the Order Status link but it doesn't give me the option to re-email the s/n.