1. Go to Registration
2. Find the correct registration form and click 'View (X)' in the Participants column
3. Find the participant you are looking to add a payment for and click 'Edit' or their name
4. At the bottom of their details click 'Record Offline Payment'.
From there, enter the transaction details, including payment amount, date received, and method of payment. You can also add payment comments. Once you're done, click 'Submit Payment'
You'll be able to see a log of all the participants payments and refunds at the bottom of their details.