it seems that in such cases easiest approach is to contact someone at Google to forward your case to the right person. I met Goog people at my coffee shop and had cases where weird behavior happened (when i tried to leave a review for example) and i just emailed them and they said "oh @#$ that looks like a bug I've forwarded this to PM at xxx. here's interim solution.." I couldn't believe it was that easy.. in the end network is probably the best path