@Graham *****
He says he has a 90-day non-O. No mention of a one-year extension of stay.
Apparently many banks will not open accounts for 90 day visa holders. Many, many reports of that. But I don't have personal experience attempting opening a bank account with only a 90-day visa without an extension of stay.
But I agree that if he has a one-year extension of stay, opening an account himself should be easy. I did it myself at Kasikorn a couple months ago. Painless, free, and quick.
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