We verified with the ticket office that the case number 8345638, was not applied by our ticket office. As for your order, the ticket office only receives the itinerary show that BKK-NNT has been changed to 2.6 , but it is not operated by ourside. It is suggested that the guests contact the airline to verify what customer and airline have done for this ticket. After get what operation u have done, then the ticket office can contact the airline to verify the specific situation of this ticket