dVT visa has the obligation to leave the country within 180 days… but you can also have multiple entries .. it doesn’t apply to 2 just entries per year. You can entry Thailand 20 times in one year with DTv visa if you want to.. DtV visa requires to proof
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0 baths in a bank statement for at least last 3 months before apply. Tourist visa and multi entry and I think also visa exceptions may request
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… but same as you.. I never been asked to proof it!