Hi - wanted to know if anyone has been to Vietnam on holiday and specifically how you pay for things in terms of cash versus credit cards, and also plugging things in. So for the first question - can I pay in most places by credit card? and for the electrical question I see it is 220V but we are 230V in the UK so can I use my electricals there or not? I have this Propress steamer I want to take but don't want to risk putting the wrong voltage through it, advise appreciated, thanks