A bank statement is no good. You need the equivalent of 20,000 baht in cash.
A bus ticket sometimes works at Embassys and consulates. I have this feeling though that it isn't going to cut it at Thai immigration in the airports at the visa on arrival desk
Eugenie Marie Harris I'm not familiar with what rules your immigration office plays by. As has been posted, some offices give 90 days and some give 60 days. My posts were more aimed at if immigration will now deal with you directly rather than through your agent.
Some offices make it difficult for you to deal directly once you have used an agent.