Just want to thank Thailand Visa Advice for their free assistance with the TDAC application. I will be transiting through Suvarnabhumi in a few days, but bought the two legs of my journey separately and expect I'll have to pass through immigration and customs before checking in for next flight and different carrier. Was getting hung up on checking the box that I'm a transiting passenger. The official form wouldn't let me select that nor allow me to advance on the application. Reached out to Thailand Visa Advice to take them up on their standing offer of free assistance with this form and it couldn't have been more painless.❤️ About 5 minutes later I was approved and downloaded my QR code. Awesome and very grateful!!