That appears to be an error - as if he didn't notice the "multiple" on the visa. It is normal to stamp "USED" on a single-entry tourist visa.
You could try to have it fixed at your local immigration office, though they might send you back to your entry-point and tell you only the place that made the error can correct it. I would hope they would cross-out the "USED" stamp, and initial / annotate that this was done in error.
It is also possible you could continue to use it as-is, but could cause a kerfuffle each time you enter, as they (IO and supervisor) try to sort out what happened.
Thank you
p.s. and my wife has same issue - same date, same visa, same officer..
The Multiple Entry Tourist Visa Topic (METV)
in Thai Visas, Residency, and Work Permits
Posted
Thank you
p.s. and my wife has same issue - same date, same visa, same officer..