If you're using Vacation Rent Payment (VRP) to process booking charges you'll need to select that option at https://app.lodgable.com/AccountSettings/view/#!/guest-payments.
If you don't already have a VRP account, you will need to speak with Sharon at VRP to get that taken care of. You can schedule a meeting with her here: https://calendly.com/srobinson-5. She will walk you through the necessary steps.
In order for VRP to process payments, a VRP Property Code needs to be added to each listing. This will be done by Lodgable for you. To ensure it was done for you correctly, you will see a code added in the box below. This box can be found by selecting a listing and navigating to the "Property Info" tab.