I left Thailand and went to Cambodia February this year, applied 60 days Thai Tourist Visa in Thai Embassy in Cambodia, and then entered Thailand on April 2022, and I extended 30 days after the first 60 days, and today just extended 60 days Covid extension visa at Koh Tao immigration. Everything goes well. I don't know why the staff told you that "can't do in Cambodia", strange, maybe just his personal emotion expression or sth. Today I read someone said this: Don't trust what immigrations in Thailand say about embassies are out of Thailand, and don't trust what embassies out of Thailand say about immigrations in Thailand.

If you would go to Cambodia, the best way is that you call Thai Embassy on Cambodia to confirm.

Hi, I have the same situation, but what visa do you have now, TR or work permit?

@Stuart ********

Hi sir, excuse me, can Tourist Visa change to Non B Visa within Thailand? Chinese passport and entered Thailand with Tourist visa on April 2022. Thanks .

@Jay *****

Thanks a lot!

@Paul ******

Cool. Good to know. Thank you man.

@Jaymie *******

Thank you for your information man. 🙏

@Jaymie *******

Well, my embassy is not helpful style embassy. LOL

@Jaymie *******

You mean, where?

@Neo ****

Hi, thanks for reply. Do you know what name is the document called from Chinese Embassy please? Is it easy to apply it from Chinese Embassy? Thanks a lot.

@Stuart ********

Awesome! That's all I need! Thank you so so much man! 🙏🤙👍