apparently not which is why I tend not to make ‘absolute’ statements
From Brandon on another thread and if I had to bank on one of you being correct it would be BT
‘you only have 2 options for the first 1-year extension from a 90-day non-O visa. Embassy certified income or 800,000 baht in your Thai bank account. It doesn't matter if you have 10 years of monthly transfers, it will not be accepted for the first 1-year extension.’
general consensus is that you have to do 800k first Best to go with the tried and true method for people who may be confused rather than more complicated risky options fraught with complexity
800 k thb for first extension and then if you bank 65 k each and every month for 12 months you can use this method for your second extension but the 800k rules still apply throughout your first year