Payment method costs. Structure depends on query parameters:

• No destinationCountry: PaymentMethodsCostResultExternal (method → cost)
• With destinationCountry only: PaymentMethodsCostByCurrencyExternal (currency → method → cost)
• With both parameters: PaymentMethodsCostResultExternal (method → cost)

Returned when the request has an error, check the code and message for more information about the error

Unauthorized response, when the user is not authenticated or the authentication token is missing in the header.

Forbidden response, when the user is authenticated but does not have the necessary permissions.