it happened once with me that i didnt have the tm30 and i had no clue what was that doc , they asked me to bring my landlord with me to immigration and the officer told me something like tell her that he is asking her to come or he will go to her , once i told her she was terrified and i helped her out by doing it in another province cuz i was leaving any way and got my new tm30 from the hotel there
If you stayed in any other property in thailand even for 1 night and they did the tm30 for you "and they usually do" then you have to ask your landlord to update it for you again , if it's the same place and you didnt stay in a hotel at all , you are good to go ,
Though if you still live in the same place after you are back just go with your old tm30 on the extension date and give it to the officer at the immigration where they do tm30s and tell them you stay at the same address and you just wanna update & they will give you a new one
i never try to be rude with thai people , they are so nice that i would be ashamed to give them hard time , some times they are nervous or anxious so they make mistakes but i would tolerate it from them anyway unlike back home i would go like crazy
my entry on dtv i had a female officer , she saw the first thai visa on my passport that was edu then she said what are you doing in thailand , i said i like it here , then she said what are you studying in thailand , then i said this is not the visa look at the next page , then she saw the dtv and before she say another word i said this is dtv visa then she said ahhh dtv ok and she stamped me for 6 months , phuket airport 😂