bottom line... it's not proper for you to hijack another person's post. Which is what you did. I simply suggested that you post your own question. Then we all can reply to your question.
You may have to show PROOF of your DTV Visa to airline staff on check-in for your flight βοΈ to Thailand...even to the connecting airline staff. Or to the land border crossing entry Thai Immigration Officer.
Upon arrival into Thailand, show the DTV visa to the Thai Immigration Officer and look at the STAMP placed in your passport to be sure you are STAMPED in for 180 days.