Can I handle my NON O visa extension and 90-day report at the Bangkok immigration office if I reside in Pathum Thani?

The NON O visa extension and 90-day report must typically be handled at the immigration office relevant to your residence in Pathum Thani, Thailand. While the 90-day report can be done at any location depending on where your TM30 is filed, the initial extension for a NON O visa usually needs to be applied for at the same office that issued the visa. However, you can also choose to visit the Pathum Thani office due to its efficiency and helpfulness.