Worst customer service!
I'm also another victim for not reading reviews before using this bunch of incompetent idiots. I've been trying to change my return ticket from Vietnam, impossible to get hold of these fools you hold the line for over an hour until you give up and they refuse to change it online.
Be warned! Never use their services you don't want to be as frustrated as I am right now. You will be wasting your money an time they do not know what they doing.