Can my friend from Ethiopia extend her 15-day visa on arrival in Chiang Mai for an additional 3 days?

@Brandon ***********

- thanks - I didn’t realise the VOA was not extendable. Is that a hard rule ie no point in bothering to go to immigration to try once here? Noted your point re the flight dates needing to be within 15 days jn that case anyway.

She really wants to be in Thailand for two events around three weeks apart. And she is travelling elsewhere, so returning home to get a tourist visa is not easy. Would you think that being here for a week, then leaving to another Asian country for a week (where she has a job/visa / residence), then coming back to Thailand and getting another VOA would work? Ie not a bounce but leaving the country for a week or so then coming back? She has been in Thailand once before, a few years ago, but seemed to think the VOA was 30 days then, so hence she hadn’t thought this would be an issue. She has no other ‘problematic’ travel history to Thailand. Thanks