I said the 'simple answer' not all the convoluted ways around it which just confuse so many OP's

Simple answer is NO

@Mark *******

Only after the first extension which requires 800Kthb

Don’t use an agent It’s very simple to extend Simpler than getting the visa

@Marb *******

no but having a DTV doesn’t guarantee questions

What questions do you expect to be asked? You have a valid visa you will be checked and stamped in

It depends on the embassy you are using for your application Ask them directly for certainty

Yes it matters The requirement is at least 500K THB in savings not earnings 500K THB is mandatory in every case for the DTV

Up to you but rejections usually don't explain why so it may have been a (bad) guess. Fill the application in as required but do check each page carefully as the system has been known to change the passport information entered especially middle names and birthdates. Most people don't use their middle names for everyday things so your bank accts shouldn't be an issue

@Fred *****

Why when people disagree does one of them always revert to rudeness. It's not nonsense but I am happy to be wrong if it makes you feel better 😀