Hello,
Thank you for your message.
Usually you should receive an email with your license key shortly after purchasing it, however, there might be slight delays from the PayPro side. If you still haven't received your license key, please try checking the spam folder of your email inbox. In case if there's no email with the license key as well, please let us know, we can search it up in our database as well as email it to you.
Please let me know if you have more questions.