What should I do if I submitted my visa application with an incorrect date of birth?

nope you're stuck and you're very likely going to get rejected because your data and passport scan don't match

For some reason many MANY people have an issue when the passport scan auto-fills the data and it comes out wrong 🙁

Then if they don't catch it and edit it, the data mis matches and the embassy rejects the application

There is NO WAY to edit data once you submit the application to the consulate. You're stuck

It is why we tell people, to take your time, go slow, it's not a race, check every bit of data you key in and that auto-fills from your passport BEFORE you submit the application to the embassy 🙁

Mine did the same thing. Still currently waiting for mine to be rejected so I can resubmit

Chrome browser gives me the most problems with date selection on Asian websites. When I switch to Microsoft Edge, the date selection problem goes away.

Another reason to read the website of the Thai Embassy, where most embassies explicit explain that all passport info, has to be excactly like in the machine-readable field at the botoom of the picturepage of the passport.

The submitted data can’t be changed by anybody ( security ), and errors made there, will result in rejection.

Make a screenprint of every page before continuing, and get some other person check before submitting.

Do not interact with Thai Governmental websites in the week-ends, either they get overloaded or they may be down fir maintenence / updating.

This must be a system glitch, I checked my info 3 times and noticed my birthday was always off by 1 number.

Money is gone start again

Very important to remember when you were born. I've booked hotels for the wrong month and year.

You just lost your money. Wait for them to cancel and then try applying again.

No, it's likely going to be denied. Unfortunately they're very very strict when it comes to dates and names matching 100 % with the passport information. The site really tells you to double check the data before submitting.