just go to the immigration with a copy of your tm30 and your passport and someone there will help you do everything else... they will make any copies and take the photos etc... if you look really confused one of the trainees will even fill out your paperwork for you so that you dont hold everyone else up 😉(though that isnt the right way and it is a very simple paper)

most important thing is the tm30 that has to be complete and correct because they will possibly want it to be verified and notorized by another person there before giving you the extension.

just to be clear this is for a 30 day extension to a exempt visa it costs 1900 thb the paid visa on arrival has a 15 day extension and i dont know the specifics for it....

they will not give you the 60 day covid extension until after the 30 day tourist extension....

assuming your tm30 is correct its about a 20 minute process mostly just waiting for your passport to come back with a stamp in it

I had a layover there on the way here it should be fine... if not then the airline is responsible for re routing you.

the plane from Tokyo to Bangkok will most likely be crowded though (mine was completely full) so be prepared for that

this is something the hotel "has" to do and if you talked person who said they can't chances are they are not actually working for the hotel but selling you a room there or something because everyone does this not just hotels, but anyone who rents to foreigners... if they don't do it they get fined... and if they don't do it within a day of you staying there they also get fined.... also if they mistake or put wrong information on it they get fined... I just had to deal trying to get my visa extension and the person I was renting from put a wrong address the first time then filled it in incompletely the second time and filed it later than the day i arrived... I dont know where they have the information online but the person at counter 13 at the samut prakan immigration office has a paper with all the information about it (that is the counter to get your online tm30 certified) they don't always check it but sometimes they will and if its not right in any way the person who filed it will get a fine. Also don't let them put false/incomplete information or dates and think it will be okay if for some reason an immigration officer comes to your place(highly unlikely but still possible usually related to overstay) and you are not at the address there then you will be in trouble though i dont know what the penalty is here (I had a similar issue in bali when the immigration came to my old apartment looking for me because they thought i had overstayed my visa)

I am particularly fond of finding it on the sidewalk