afaik you don’t have to buy the ticket and it’s on the airline, maybe if they give you the option of going to a different country than your departure you would have to?
happened to me going to Vietnam last year when they were trying to hustle me for a new visa, i told them to put me on a plane back to bangkok
This group is full of people who never matured past the 12 year old edgelord phase, unfortunately they are drawn to thailand like moths to a flame and just inevitable. Just ignore them