After purchasing you will receive an email from FastSpring with the purchase details. You also receive a separate email with the registration details that you need to enter into the about screen in BaseElements. Copy the details into the dialog shown below and click "Register" to continue.
Registration codes sometimes take up to 24 hours to process, so you may not receive them straight away. If you have any issues with registration codes or purchase, contact us using the forms on the support page.