Hi everyone. Thank you for all the advice you give everyday. Im Italian.

So the 1st of may i stop my non-b extension and work permit and i got tourist extemp for 1 month waiting the new company in bkk prepare all the papers for me. Now we we are getting confusing because talking to the labour office, they said that i have to leave Thailand before my new company apply for the work permit and it will takes around 3 days to get the letter. When i get the letter for the work permit i have to go to the thai embassy and i get the non b visa. It is right that i have to be outside Thailand before my company apply for the work permit? Thai embassy in Singapore is a good choice? Thank you in advance. I hope i give all the necessary information