请教亚航这种情况该如何退票

大家好，5月大促时买的票，因为怀孕了，跟亚航沟通提前日期未果，现在考虑直接退掉，但是不知道是退票还是退税好，被各种FEE搞糊涂了，恳请大家帮忙看看，一共4程：


天津至吉隆坡：

2 Guest 546.00 CNY

Airport Tax and Fees 404.00 CNY

Fuel Surcharge 240.00 CNY

Total Paid 1190.00 CNY


吉隆坡至普吉：

2 Guest 0.20 MYR

Airport Tax 50.00 MYR

Total Paid 50.20 MYR


普吉至清迈：

2 Guest 0.20 MYR

Airport Tax 50.00 MYR

Sub Total 50.20 MYR

Total Paid 50.20 MYR


曼谷至深圳：

2 Guest 1000.00 THB

Airport Tax 1400.00 THB

Fuel Surcharge 600.00 THB

Sub Total 3000.00 THB

Services & Fees

2 x Convenience Fee 180.00 THB

Sub Total 180.00 THB

Total Amount 3180.00 THB