Calling the API to pay for post-sales ancillary orders. This API is used for order payment & ancillary purchase. Only. Making payments and request by calling the AncillaryPurchase API. The partner calls this API to inform FR24 to deduct balance for the order requested. If the API called successfully, the payment will be successfully processed. After the order is created, the order has to be paid within payment deadline, otherwise the order will be canceled.