Don't take Facebook advice contact TSL & Associates out of Bangkok. For a reasonable fee their attorneys will help file everything for you. We had everything done before we arrived, had paperwork ready, two hours after landing we had our pup. Why fight all of these issues especially considering the thought of them not letting your dog in. I live by the mantra of, it's not what it costs but what its worth. My dog is too valuable of a family member to skimp on her.
Contact TSL & Associates in Bangkok. For a reasonable fee they handle all of these types of problems rather easily. They handle all of my legal issues in Thailand.