@Graham *****
you have two options: transfer the THB800,000 all at once or any number of amounts. But the full amount must be in your account 3 months before you apply and stay 3 months after. Or, you can put THB65,000 into your account every month for 12 months then apply. You cannot miss say a month then put double in the next month. The authorities won't accept that. They need to see you have a regular monthly income. The authorities were forced to change the rules because of rorting by foreigners. Hope this clears it up for you.