Card fees must be enabled in your system by the team at Res:Harmonics.
When the card fee functionality is enabled, the system will charge a card fee at the point that you take payment by credit card.
Card fees can be defined in the Card fees section of the Admin → Finance → Card Fees, an overview of the functionality is below. The card fees can be calculated as a fixed fee or a percentage rate depending on the required approach.
The card fees can be charged at the point of taking payment in the back end system or during the payment phase of the online booking journey.