So, when you are denied entry at the airport and the airline staff representative asserts that you need to buy a ticket back home, what happens then? Do they ever come back for you? It seems like the holding cells suck.
TLDR : Answer Summary
When denied entry at a Thai airport, you are typically informed by airline staff that you need to purchase a ticket back to your country. In such cases, the airline is obligated to assist you, but they will not come back for you after this process. You will likely be held in a designated area at the airport until your departure is arranged.