It was not changed to 4 per year. The limit of 2 per year was removed and now it's the same as flying in

@Shanelle *******

you write it

You can't add your kid to your DTV but you can apply for a DTV in their name as your dependant by quoting your DTV. Obviously you need to leave Thailand and apply via a consulate in another country

Normally to apply on medical grounds you need a treatment plan going forward covering at least 6 months signed off by a recognised doctor on official hospital letterhead. Having had treatment in the past or just claiming you will get treatment in the future isn't good enough

@Afik *********

either a free stamp or visit a nearby country and apply for a visa through the thai consulate while in that country

You must be in the country you apply from and remain in that country until the process completes

I would apply for the DTV while out of Thailand after your first visa exempt entry. There's no guarantee you'll get a second one. You need to research where you want to apply yourself but you can apply via the Jakarta embassy while you are in Bali. You need to stay in the country you apply in until the process completes or risk your application being rejected. If you also want to apply for a spouse or kids you can only do that once the primary application has completed as you need to reference that visa in the application

@Frank ****

no such thing as a 90 day OA visa, that's the 12 month visa. Don't you mean a 90 day Non-O visa? With that, a residence certificate from immigration and apply telephone registered in his own name he should be able to open a bank account in his own name. He might still need to try and number of bank branches though

You start a company and employ 4 full time thai employees then you apply for a Non-B visa and a work permit assuming what ever it is your doing is not a restricted occupation

If you are inside the for 90 consecutive days you are legally obliged to file a report. That report can be filed up to 14 days in advance or 7 days after, but that's only to file. It doesn't remove the legal requirement to file.