I Want share experience while doing 30 days tourist visa extention..

First of all we have to get the embassy letter. My case is Colombia.. Once we got the letter then we set appointment to the immigration office at Muang Thong Thani for today 9-11 at 9am. Tourist visa extention counter is at the first building on the 3rd floor.. Today is quite empty.. The immigration staffs who help us were suuuppperr nice and polite. They directed us to fill the paperwork and even submit the paper to the officer. We wait at the waiting room and 5 minute later they called us, we paid the visa fee and informed that we have to back at the office on 25th Sept to get the stamp.. I believe that everyone with complete paperwork will be granted 30 days after 26 sept..

My advice, its better to set appointment now or next week to prevent the stress and crowded on the last minute..