Can I replace my non-B visa at Samyan or only at Chaengwattana?

And just so you know, there is no longer an immigration office at Samyan aka ChamChuri Square anymore 😮

The BOI/One Stop Service Center moved to the One Bangkok Building

BUT

You can only use that office if that's where your visa/extension were issued from 😕

so as people said IF you used Chaengwattana that's where you go to get the stamps transferred 🙂

This is the transfer stamp form you need to fill out and make the copies listed on the back of it,

you get the extension transferred to the new passport at the immigration office that issued it,.

So if you got your extension to your Non-B at Chaengwattana that's where you go

Do you have a VISA or an extension ?

Only at the immigration office that issued your current one-year extension. If yours was issued at Chaengwattana, you must go to the Chaengwattana office.