After you have made the payment and got confirmation it was successful, you should receive an e-mail to your registered e-mail with a link to activate your account and set up a password.
Usually, the e-mail arrives instantly, but there can sometimes be a delay of up to 10 minutes. We also ask to check the spam folder as sometimes activation e-mails can land there.
If you haven't got an activation e-mail within 10 minutes after payment, please, contact our support. It might be the case that you misspelt your registered e-mail or trial got registered for a different e-mail.