Can you add a feature to disable the option to select Amex cards, Diners cards, JBC cards on the online payment page.

When my clients are sent the pdf with the online payment button they are redirected to the online payment page but this has all the card options. My worldpay account only accepts certain types of cards.

Also is it possible to be able to set a percentage amount of additional fee to be charged based on the card type. So for example if a credit card is selected then 2% is added to the invoice sum or for other types of cards it is a different amount.