No problem changing ringgit in Bangkok mall banks, better rate than in KLIA-LCCT. BUT .... LCCT bank did not have any -- ran out!

Japan, can VISA withdraw from any Post Office ATM. However, hefty charge added.

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Note - for travelling in Japan:

Credit cards are really convenient for getting cash in Japan, esp since dealing with banks is really a pain even if you speak Japanese! Not all shopping area bank machines accept cards, but all post offices have English capable ATMs. This service used to be free, but now there is a hefty charge (on top of the behind-the-scenes rates from the banks and card issuers) , so use sparingly.

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