You might want to clarify with the embassy whether or not they want the source of the funds being legitimate (how you got the money) or the statement itself.
If you need services at local immigration office and some eagle-eyed officer notices you missed your 90 report expect a 2000 baht fine. Other than that forget about it for now and report 90 days after your next entry
Sounds like an ad. Coupled with the earlier post this morning expressing reluctance to provide documentation and suddenly all the positive responses in a very short time... sceptical.
He really should give a very detailed description of your application scheme, finances submitted, entry history etc if you want a breakdown of where the application is weak.