I see a purchase with your mail address but no key request from you yet.
Please (re-)send an e-mail with the request code that is shown when you launch vorpX to the e-mail address that is shown there. Provided your e-mail can be parsed automatically, you should receive your key shortly after.
Alternatively you can use the contact form above under Support > Contact, just in case your mails do not get through. Getting a reply might take a little longer that way though since it is not automated.