It may happen, amongst other things, that end customers find additional transaction fees on their credit card statement when charging their virtual credit account. We do not charge fees for charging the credit to the end customer.
However, it may be that currency conversions are chargeable, if the credit card for example is transacted in EUR but the payment was transacted in CHF.
However, these fees are always to be applied to the individual contract between the end customer and the credit card service provider. has·to·be has no influence on these fees.