Either get an extension of stay before leaving and a re-entry permit. Or, if you have legal Thai family, get a 60 day extension of stay based on family, and a re-entry permit.
I had this problem as well. For SCB if you make a withdrawal on the day, it can show immediately show on the book, but the statement will not show it (as they update this after midnight I believe). So, the book and the statement will not match. All you need is the book updated on the same day, so that it matches the statement.
"Within 3 days of arrival" means that it must be completed sometime during the 3-day period immediately following the day of arrival. This is incorrect information. It must be completed within a 3 day period, before arrival.