I'm new to the Paypal API, and i'm trying to work out an issue i have with our shopping cart. I'd like to prevent people from paying with credit card through Paypal, so I have deactivated the 'PayPal Account Optional' feature in the Paypal account settings. But for some reason this shows no effect in the shopping cart checkout. When being redirected to the Paypal page for processing the payment, a customer can still choose to either pay with credit card or via Paypal.
Does the Paypal API offer an option to change the 'PayPal Account Optional' setting during checkout, and overwrite the default setting in the Paypal account? If yes, where would i find more information about this option? If no, does someone have another idea why changing this setting does not have any effect?
Thanks for any help!