It's still officially 2 months,not 3 months, and you have misunderstood those 4 months at Bangkok Bank. You don't need to season the money 4 months to get the bank letter. You will get the bank letter exactly same as before, 2 months prior to the day you apply at immigration. But your money must be in your account 4 months prior to avoid your money to be frozen.Get it?
It seems you can't read. You're talking about KBank and I mentioned Bangkok Bank. The article in The Nation is just a proposal from BOT about "ordering" every bank to go for a 50k daily limit. My limit with Bangkok Bank when using the app is 300,000 baht per day,not 50k as with KBank. Get it?
I don't care the least about the daily ATM limit. It's irrelevant. The transfer limit between banks is more important but I can use K BIZ if I need to transfer more than KBanks app allows me.