我search呢個"來回"單人總共只需比788雜費即係雙人來回只係1576
但我先換2張去程$1036再換2張回程$1466
比雜費要2502

[Overseas non-Citibank ATM - via MasterCard/Cirrus/Visa/Plus or other Card Association Network(s)]:
[...] For overseas ATM cash withdrawals effected in currencies other than Hong Kong dollars, the withdrawal amount (including any surcharges imposed) will be converted into Hong Kong dollars at the prevailing exchange rate [...] as determined by MasterCard/[...], and a conversion spread of up to 2.4% of such Hong Kong dollars amount will be charged by the Bank (including any fee charged by Mastercard/Visa or other card association to the Bank). [...]