What are the best apps or airlines for booking refundable tickets in Thailand?

The discussion revolves around finding apps or airline links for booking refundable tickets. Several commenters note that refundable tickets depend on the fare class chosen, with some airlines offering fully refundable options at a premium price. Many recommend using platforms like Expedia, Agoda, and others, but also caution that obtaining refunds can be challenging. Other suggestions include purchasing flexible tickets or reservation services that can be canceled for a fee. The conversation also touches on alternatives like 'dummy tickets' and onward flight bookings.