I have a booking for TG670 787-9 Bangkok - Sapporo in this coming winter. I booked a seat 14A. This morning I received an email notifying me that my seat has been changed. I thought the aircraft was changed but still showing 787-9. However, the seat layout changed quite a lot. Row 14 is gone and entire middle seats are gone. Is this an aircraft change? If so, what aircraft is this?