Sorry to hear that bro. I have a friend from Pakistan who I’m helping to get a DTV visa. He could apply at the Thai Embassy in Pakistan, but he told me he doesn’t trust locals to do the right job, so he will travel to another South East Asian country and apply there. You could do the same. If you go to Jakarta, Indonesia, and apply there, you can be pretty sure that, if you submit the right documents, you’ll get your DTV visa.
I don’t think they require you to have the ฿500K in your bank for six months straight. Almost no one does that as the money would just be eroding away due to inflation. Just show 3 or 6 months, with the last month containing over 500K and it should be fine.