What are the "secret forms" at Chaengwattana Immigration office and how do I fill them out?

The conversation discusses three mandatory forms at the Chaengwattana Immigration office, referred to as "secret forms" since they are not available for download on the official website. A user requests guidance on completing the confusing 'statement' form, while others share personal experiences with these forms in different locations, such as Krabi. Additionally, there is a query about downloading the 90-day report form, which is identified as the TM.47 form.