Can I renew my Non-O visa in Thailand while meeting the bank requirements and timing for my application?

Hi Tod Daniels, my non-O renewal based on being over 50 is due for renewal in October but I want to renew in late September.

I have a couple of questions if I can. British passport, living in Bangkok, self file online for TM30, used embassy affidavit of income during recent years which now is unavailable to me so my application will be based upon banked 800ktb which is already seasoned.

* Can I still apply to renew my extension up to 45 days in advance of expiry of old extension at Cheang Wattana?

* For a successful application do they still issue extension renewal on the same day of application?

* I understand that I need a letter from my bank, K-Bank, confirming that the account is mine and a verified statement from the bank, can I get these in advance of the day of going to CW or do they need to be issued on the day?

I also understand that I need to show a transaction in my bank book on the day of application, small withdrawal or deposit.

I intend to get to CW at about 6.30am, queue, get ticket, enter immigration, get ticket and queue again and wait to be called.

* Should I wait to be called and then have the I/O tell me to get the on day transaction done or what?

I don't understand the best plan to obtain the bank documentation, any advice would be great.

TM7 and 3 secret forms I understand.