What is the email address for licensing issues? All I see on the main page is an email mailing list and I don’t really want to join a mailing list just over an issue with PayPal.

In a nutshell when I clicked ‘Return to merchant’ I got the following message: “Your payment has been cancelled. You can still proceed with registration by visiting the payment link again.” Howver my paypal account says otherwise so I don’t know who to believe or what to do?

Thanks.