I just closed my under consideration stamp for an extension with embassy letter at MTT and got a stamp 30 nov. ๐๐
It was quite smooth, 20 minutes only, and no one asked for the online appointment. But I recommend to do one just in case....
TLDR : Answer Summary
A user recently shared their positive experience of obtaining a visa extension stamp at MTT, noting it took only 20 minutes and no online appointment was asked for, though they recommend making one. The conversation includes gratitude for shared experiences, inquiries about fees for the extension, and questions on whether individuals with earlier stamps need to return for the new one.