No but you can be asked questions how you live in thailand without income, some well informed source told me that soon there will be a pro forma tax for all dtv holders that are not resident but have income outside thailand
there is an increase of around 140 Pct of Muay Thai gyms and agencies for DTV since the start of this year, clear that Thai government becomes more strict
i thin k the intsructions are clear, you need the funds a saving account for 3 months and that will be changed soon to 6 months ; that in comboination with the tax issue will not make it easy