Hah.
Sign as many worthless documents as you wish.
The Thai government don't give a hoot what you think and never will.
And quite rightly so. They have never been occupied by a western power and subsequently don't adhere to the legislate/litigate culture thank god.
Pick a western carrier if you fly in Thailand...and leave the Thais to themselves. They have done a remarkable job without our crappy western influences for thousands of years.
Most ATCs in Thailand don't have a basic grasp of aviation english...
I hope you petition is written in Thai