It depends on your country, and what kind of campaign you are running. We have a comprehensive guide which covers No Purchase Necessary laws around the world, so be sure to read that before you award entries for paid actions in a Competition campaign.

If you already know what you're doing, here are the instructions for setting up a paid action:

1. Create a new Competition
2. In the How to enter tab, insert a Custom Action.
3. Create a link or button in the action description with payment instructions
4. For verification, you can manually verify the purchase by asking for a receipt ID/email address
5. Another option for verification is to set up Custom Action Tracking so that payments are verified automatically
6. To set up a free entry alternative, check the A purchase or donation is required for users to complete this Action statement.