Neighboring countries can cross as many times as they like, and can also enter using their ID card (with some restrictions).

The countries also let Thais do that too (I know Laos and Myanmar do)

You get stamped out at Chiang Mai if your international flight is on the same ticket.

10 usd is cheaper. Like enough savings to get you 1 good western meal or 2 large beers.

Are you on a visa or extension of stay? There's a difference

go get a few crispy usd bills from superrich before you go

If you're strapped for cash, you should consider paying for the myanmar visa in USD its cheaper (like 2 large beers in savings).

nothing you can do then but wait till they get back to you.

The 24 hours rule isn't strictly enforced. As long as you have the TM30 receipt when you do any immigration related activities (extensions or residency certificates).

Also, on an unrelated note some hotels that you stay at also don't bother to file one unless you ask them specifically.

Send your departure card and copy of visa entry stamp to the landlord and ask them for a tm30 receipt.

If it's the same place, Take the existing tm30 receipt to immigration office along with your departure card and tell them to update it.

Depends on the bank branch. It's still possible to open with a visa exempt stamp in some branches still.