Feel a bit silly having to ask this question considering I’ve done it twice before already .

My yearly extension ( 0-A non based on retirement )

Is due Oct 12th

Firstly what’s the earliest I can apply , and would that effect the start date , and I can’t recall , although I thought I wrote down , list of requirements

Bank statement having 800k , been there 3months + ✅

Letter from bank , certificate ✅

Passport ✅

Filled out TM ? Form ?

Proof of address , contract if rent ?

Anything else ?

Plus if I want multi entry , I need to wait 24 hours after to apply is my understanding in my local immigration ( Jontiem )

Thanks