Search is your friend to find out what other people have done before.

This is not G….., you need to do a effort yourself.

Remember sponsorship DTV’s are harder to get than a normal DTV.

If only 1 time DTV is not for you.

You need to get a visa that allow you to work legally during your stay in Thailand.

Would never ever try to bend rules and work illegally in a country that would be worth visiting again some other time.

Be careful to use the same classes as everyone else, may not have capacity, and Embassy will be suspicious

As most other requirements it depends on which Thai Embassy you intend to apply at, so turn you attention to that ( or those ) Embassy only, and forget everything else you read.

Make a Embassy specific search of the group.

You should do a whole lot more research before applying, because you don’t know even the most fundamental things.

DO NOT use a agent, if you can’t research and apply by yourself as you are supposed to do then, you are not prepared to do such a move.

The Thai Government did make the rule about applying outside of Thailand only to prevent corruption by using agents.

First of all you need to be aware that requirements differ from Embassy to Embassy, so only pay attention to the Embassies relevant for you.

Of course you have to show the documentation that allows you to enter Thailand, if you want to be sure to enter on those terms.

Make it simple and easy to understand for the Embassy staff, then less risk of loosing the 10.000+ baht visafee, and be rejected.

The Embassy didn’t think your purpose could justify a DTV, and gave you a appropriate visa instead.