This is a alternative form which is free, and you do it on your own 🙏
We’ve processed around 100,000 cases and found a 5–10% failure rate in the system (which we successfully submitted those cases by automatically resubmitting). For many travelers, the reassurance is knowing their submission will actually generate a confirmation email, without the risk of running into system errors.
Also you can quickly submit a new TDAC based on a previous TDAC with the click of a button.