What I have read as a tip in another group, is to transfer 400k฿ to the new bank account first and keep a bit more than 400k฿ on the current account (Which 3 months after getting the year extension, is the minimum to keep). Then, a bit more than 2 months before the next year extension, put the next 400k฿ to the new bank account, so it's 800k฿ on te new account 2 months before for the new year extension.
Well, I only looked at it now, and indeed in the app it says 'DEP TRF FR E-CH'. I also have the 'browser link' and also there it's different as you see on my picture 🤷♂️.
Also a strang thing happened with me last 28th of august. Had no problems for the last 7 years and this time a message from Wise came back:
'The name we had for your recipient THB account appears to be wrong. Because of that, your money was sent back to us.
Tried again but same result. To make a long story short: I removed the recipent (which was the bank account from the Bangkok bank of myself) and added it again with my name without last name. Then it went through very quick indeed as if I had chosen 'other' as a reason.
It seems, with all the 'Bangkok bank troubles' I read, that they are working/changing their software/interfaces.
I remember reading in the Q&A group (Tod Daniels) that imm. only count the 12 months deposits from the start of your year extension. 🤷♂️ (I still can have an income statement from my Embassy, so not sure)
And maybe an extra possibility because you mention "living expenses". After y'r first year extension with 800k฿ on y'r Thai bank account, you also can use 12 months of more than 65k฿ (international transfer) on y'r Thai bank account. (ask y'r imm. office) So after you have y'r year extension, immediately start the 65k฿ transfer so you have y'r 12 months transfers. This money you can use for monthly living expenses. After that 2nd year extension, y'r 800k฿ 'is free' but you have to continiously transfer that 65k฿. Maybe that's an alternative for you later on.
Look in y'r passport if they stapeled a new "notify in 90 days" paper. Some imm. offices put in a new paper with a date 90 days from y'r new year extension. Korat imm. always did with me.
Maybe most of them already long time residents. I opened a Kasikorn account 14 years ago, even on visa exempt entry of 30 days. No app then, only cyberbanking (via internet browser). About 9 years ago, I also could open a Bangkokbank account. Then it was not a very big problem. Only walk to a couple of branches. But indeed, now I read it's becoming much more difficult. Sometimes even with a long time visa with certificate of residence.