Scam. Make you pay for free service.
Website shows up high in the ranking when doing a Google search for "TDAC official website", however it's not the official website for Thailand Digital Arrival Card. They collect names, e-mail, passport numbers and passport expiration dates. Official TDAC does not require expiration dates. Some info that offcial TDAC requires, they don't collect. It's a scam. Only at the end of the process they present a $195 fee to complete the process. They create a false sense of urgency by suggesting fees for faster processing and sending reminder e-mails if you don't complete the process. The official TDAC site is free and immediately processes your application. "Contact Us" link on their website does not work Stay away from this scam.