I just submitted my application this morning also in Taipei. They rejected one of my contracts for same reason. "We want to see the payments from this job on your bank statement for 6 months"
It is strictly PR, I'm a 23 year long resident in Tokyo and been in contact with Thai Embassy in Tokyo several times. There is no exception Japanese citizen or Permanent resident only. I'm going to Taipei tonight to get the DTV. Same day approval.3 hrs from Tokyo so consider going there soon.
Only Dec 31 is a holiday. Open other week days. A lot of Asian countries do not celebrate Xmas so open as usual. They have stated Dec 27 as the last walk in date.