I'm sorry if this has been asked before, but I'm finding conflicting information.

I had an METV (Australian Passport) and I need to leave the country by the 8th of October. I have already extended my last entry on this visa by 30 days and cannot extend it any further. I did 2 land border runs with this visa. The visa is now finished.

My understanding is that these land crossings do not count towards the 2 land entries into Thailand permitted each year.

My question is, can I leave at Mae Sai land crossing, and reenter thailand without a visa, and get another 30 days in the country as a visa exemption?

Thanks in advance :)