you misunderstood and didn’t do your research before. Go to the main immigration office and downstairs they will do a basic check of your paperwork before sending you to the queue. The lady that has the copy shop behind the office also knows what docs you need and how many copies etc.
Your bank statements and passbook updates can be from the day before
you have no idea what you’re talking about with regards to the conditions of purchase on airline tickets or immigration.
With regards to immigration or a Thai Consulate it’s pure fraud renting a ticket with no intention of it being used. It’s pretty simple. Should not be that hard to understand even for you