What should I do if my application for longer stay in Thailand is rejected?

Yea it seens there's a computer glitch yet again as many posts have mentioned this recently , mine was also rejected this month. We'll all have to use the drive through this month.

Same thing happened to me applied twice so I went in to immigration 2 minutes in and out no problem the computer system will do this from time to time

Try again online and if it fails then go to imm before due date.

No need to worry at all, not in the least

It's a computer generated rejection and that's just what it says when the email goes out

You don't have to drop everything and run to the immigration office, it just means you have to go apply in person (which you can do from 2 weeks before the due date down until 1 week after the due date)

Remember at a LOT of offices now the online window to apply is from 2 weeks before the due date until 1 week BEFORE the due date <- giving you only a one week window to apply online,

If you have time before your due date you can apply again, worst they can do is reject it 😕 I once applied FOUR times to get a 90 day report thru. It was rejected 3 times, and I kept fiddling with how I typed in the address until finally they let it go thru and I was approve 😛