There are still some people who send documents and filing the wrong days to make payment cannot be paid in a timely manner, and could be understood, for the correct document.
There are still some people who do not submit the correct documents and a day can not afford to make payments on time, and might be understandable for a valid document.
Still, there are some people who send documents invalid, and filed the wrong day makes paying can not จ่ายตรง over time and may be understood for sending the proper paperwork.