@Wannikea ********
it's okay - I realise that the minimum of 65,000 baht can be spent (living expenses etc) once transferred.
The 800,000 baht is the initial eligibility amount which needs to stay in the bank account for the first extension application, and then can be accessed after 3 months, and brought back up to the same amount if the subsequent application is again using the 800,000 baht method.
Hope this clarifies your query!
Regards!
Graham