Hey Aviator86,
I had same issues with my Class II as well, the best and fastest way to get hold of the certificate is heading to the Medical cell at the DGCA office. You can tell the PMR section guy over there you want the assessment asap. He ll get it signed and given to you as soon as possible from the Director of the cell and you ll have it in your hand in a day. No need to waste time waiting and sitting at home..
And to the calls , they surely dont bother picking up. I have seen it right when i was there..
Hope this helps.
Thanks