From the Dashboard go to the Credit Card Authorize Tab

From here you can see the Surcharging is in affect

When the box is checked it should show your chosen percentage

The total will only change with added surcharge once a credit card is put in

When the surcharging box is unchecked – you can add a debit card or a credit card and no surcharging fee will be added to the total

When entering the first 8 digits of a card the system will recognize it as debit or credit

If it is a debit card the field will state ineligible when the surcharging box is checked

Surcharging cannot be processed with a debit card