Could you please get e-mail from AMEX that clarify the reason about changing from economy class to business class and get approval from your LL3+ (Laurila, Robert CDSID: RLAURILA) & Finance concur (Sriram, T V CDSID:TSRIRAM)) and cc Xiao, Yuyang CDSID: YXIAO18 to support this case. Thank you ka