@Mikkel ******
The way the Australia and UK works it's proof via embassy of 65,000 monthly.
Or the 800k matured in a Thai account.
Or 400k if married.
Recently some countries are not going to be signatories to the affidavit of income or savings.
But I do see several who have used a letter from their own country Bank as proof.
And it's been accepted.
There is also a discretionary power the IO office boss has to waive the 800k matured money.
I think this is how visa agents get the ok.
And why some IO office send you to the agents outside for this service 😀