Leaving for Vanuatu in just over 3 weeks and have been reading a bit about the ATMs in Port Vila and see that there is an ANZ and a Westpac bank and ATMs. I bank with NAB. Can I use my NAB ATM card to withdraw money from my savings account using the ANZ or Westpac ATMs? I've been reading about how linked credit cards are not usable and am a little concerned about it. Many thanks. Regards.