Delivery is NOT instant download, you will receive the file(s) by private conversation when the order is processed.
Typically you will also receive an email notification and link about that conversation.
unless your changed your profile settings to not receive conversation notifications
and or you will see unread conversation flag icons at the top of the forum web pages
You do not need to do anything else (except wait) after payment.
Delivery time is usually within the hour, or as soon as possible, in home office hours.