Banking statements or apps are not accepted.. They may ask to see up to 20,000 baht (or the equivalent ) in cash only. Most of the time, they don't ask for it, but if you cannot produce it when asked, they will send you back to wherever you came from.
Sorry it’s hard to see, but I took that photo a week and a half ago. $200 sounds right. It’s been the same price for almost a decade according to the flyer.