As your requested to cancel two tickets(Bangkok- Chennai on 24 Sep, 16 and Chennai - Mumbai – Ahmedabad on 27 Sep, 16) and issue new ticket(Bangkok- Mumbai – Ahmedabad on 27 Sep, 16)
Due to there have additional cost, Could you please get approval from your direct supervisor within 20 Oct, 16 to support payment to AMEX refer policy in below.
And please process refund two tickets (Bangkok- Chennai on 24 Sep, 16 and Chennai - Mumbai – Ahmedabad on 27 Sep, 16). Thank you.