this is true ! It happened to me in Nov they hold me for almost 3 hours I almost did not enter the country I had to literally beg and show them ticket getting out of Thailand in the next month wich I had to buy on from of them, reservations for tourist activities and they make me sing a doc. They told to get the DTV or I will no re enter Thailand next time so that’s what I did and that day multiple people who can’t show proof of leaving Thailand soon was denied to enter.