I think your age is a factor because if your like me under 50 your visa choices are limited and very strict. I did the Master Chef diploma in Thai culinary arts and the process for applying for the DTV is simple. There is a check list on the embassy website. Mines was granted within 24 hours from London.
It's a simple process to follow and check sheet on the embassy website. As long as you provide what they ask for it's a simple process. Mine took less than 24 hours to obtain.
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