Another Tokyo applicant was also issued 6 months visa while applying for a DTV. Tokyo offers a pre screening appointment to determine if you are suitable for the DTV. Futire applicants should make use of this service before applying online. You can apply again elsewhere. Other applicants have failed at one embassy then successful at the next. Try and contact them to see if they can give a reason why they gave you 6 months.
Yes the 500K must be in a personal account. Detail how you run the business online. Write a letter to yourself giving permission to work remotely in Thailand. Seems strange I know but it is needed. You can find other business owner posts in the threads to get a lot of useful info.
I get paid similarly. I included a letter from my employer detailing I received no payslip and the amounts I was paid for the past 6 months. Those payments I highlighted on a bank statement.
Anonymous participant Yeah, very useful to have the DTV now with the potential changes to visa exemption. Manilla is a very friendly, helpful embassy, I almost applied there but went with Taipei due to its' same day approval.