I have used Bangkok Bank for 10 years. My routine is to ask for a 12 month statement from the last extension date. This has to be ordered from Head Office therefore falls short. The day before going to Immigration, I go to the bank for a 6 month statement, immediate, as is the letter to show I am the owner of the account and the amount in it. Job done! 2 statements and 1 letter which is the requirement for the extension of stay based on retirement and 800k in a separate account. Never had any problem with this.
Only problem I can see with this scenario is that you are going to be tied to Bangkok for extensions etc. Ideally you need to go and do this at Hua Hin if that is where you are going to be living. The trip to do all this at Hua Hin will save a lot of hassle later.
Robert Graham you can still do 800k for the first extension in the bank method whilst you are making the monthly deposits. Then at the next extension you are just showing the 12 monthly deposits and not the 800k.
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