What should I do if my daughter's ED Non-O visa was incorrectly stamped upon entry into Thailand?

Last year I applied for a 30 day extension, but was stamped in my passport for 1 year and 30 days. (Officer set the wrong year on the date stamp). I thought about staying for longer than 30 days, but decided to go back to the same immigration office, and they corrected the stamp to 30 days.

It's a mistake that she didn't notify the IO that she already had a stamp, she needs to go to immigration and get it corrected, not sure if it has to be at the airport or at an office, I'm thinking airport.

There is no ED Non-O but that is neither here nor there, IF she was on an extension of stay from the immigration office & had a re-entry permit but was stamped in wrong she needs to go back to the airport she flew in at and get the stamp corrected.

She does NOT have to abide by a bad stamp <- BUT it's HER responsibility to look at the stamp she got before she walks away from passport control to make sure it was right 😮

They will correct the stamp at the airport, so send her back there..