Unfortunately your consulates were closed. I left on an OA extension to kill it off as well, returned 3 months later with a 90 day Non O from home Embassy using my existing health insurance to cover the Non O application E-visa process. For my 1st extension on the Non O, two months bank statement was all that was needed, my previous OA was not mentioned by the IO. ( Phuket ). Sounds like the Non O 'in house' route can be more of a headache.