I don't want you to bring the wrong documents, but a good "rule of thumb" is:

- Your wife

- The original rose-border certificate

- A double sided copy of the rose border certificate

- A copy of your data page (the "picture") of your passport

- A copy of your depart by stamp page

- A copy of your visa (if it applies)

- A copy of your departure card

- A copy of your TM30

- Two passport photos

- 1,900THB

You may not need all of these documents, OR you may need more. Immigration would be the experts

very good, excellent info for all those stranded youth travellers on the islands . . . . . solves many problems

so I would follow Robert's advice and talk to the person supervising the quarantine ASAP before you slip into overstay

thank you for clarifying this. Yes, you cannot cancel any Non-Imm inside the country. However this is what Mike Gaudet recommends, to "cancel your Non-O"

. .and to me, one thing remains unclear: How do you "cancel your Non-O visa" while you are still inside the country? By going into overstay? By applying for a conversion? I thought conversions can only be done from tourist or exempt visa towards a Non-O and not vice versa ?

for a 60-days extension of stay based on visiting family, yes you have to prove that you are married and bring your wife along. No financial proofs needed, though

Mike Gaudet . .. very good info, however you haven't mentioned the possibility for those on marriage visa to apply for the 60-days based on visiting family in number 3) . . . instead, only recommend converting the marriage Non-O to a tourist visa . . . .??

would booking a hotel room for a few days - they will register you with their TM30 - solve the problem ??? You could then change to your actual adress later, pay the fine for late registering TM30, but still be good for now?

yes

two months before application and three months after