Jesus, are we serious here. You think there are websites set up which will sell you a flight which doesn't exist. And you have 100 travel agents very close to you. Wow.
No. But you got something for your money. We learn how the world is not fair. It starts with the inequality of capitalism then influences everything else. Billions never pass through immigration for a holiday.
wrong. Eg, UK and Thailand have an agreement so there's no dual taxation. Many other nations do too. Thailand economy would collapse if they tried such tricks as all their foreign income would move to Philiphines or Vietnam.
Do a same day visa run to Malasia, from any of those destinations (including the islands) in the south , you'll see travel agents. For $50 return you'll be picked up first thing, taken to the border and back for late evening. Everyone in the minibus will be doing the same thing. A one day, cheap commitment. Not bad