This where answers on this partial thread where you started with the word "Wrong" as answer on the statement Vincent mentioned. It's not, but have a nice day with y'r bananas.
This I don't know, but I know some imm. offices accept it. You have double work to do though. 1st the bank statement that the missing money from y'r monthly international deposits was there already 2 months before y'r application and 2nd the statement of the 12 deposits.
And should you have a passport of a country for which you can have the 30 days visa exempt, I would not go on overstay 2 days. Should you be checked in those 2 days, you have a big problem. The (later) return ticket is most of the time a problem with your airliner. Not many times by Thai imm.
I cannot read Thai, but does it says somwhere these are international transfers ? Or is it proven by the 'international transfer' text in the bankbook.
I remember there is a document which, if the insurance company signs it,(which they almost never do) you also can use. In y'r link that document is also mentioned to download. Maybe Cigna signs it. š¤·āāļø