What documents are required for a DTV visa to apply for a Muay Thai course?

To apply for a DTV visa (education visa) for a Muay Thai course in Thailand, you will typically need several documents beyond just a confirmation letter and receipt. Key documents may include an invitation letter from the gym, a receipt for your payment, an itinerary of your stay, a detailed curriculum of the course, the owner's identification, the gym's business license, and possibly certifications from the Ministry of Education and other relevant sports authorities. It's advisable to check with the specific Thai consulate or embassy for any additional requirements.