post Billing Payments -> w/internal CardId

POST {{HostName}}/csh/v1/hotels/{{HotelId}}/reservations/{{reservationId}}/payments

API to use the card already on the reservation to make a payment on the folio. The internal cardId of the existing credit card payment method can be retrieved in the get reservation API and then used to initiate a payment transaction to the integrated Payment System.

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