Zerodha — technical error from zerodha, customers pay the price

This is to bring to your notice that I have lost over 1.5 Lakhs in a trade which was a Technical problem from your platform on April 12, 2018.
The stop loss for cover order never got executed and I tried multiple time to exit by placing a limit order and market order which did not get executed and was blocked by your system

I have attached the proof of the error from your platform .
My life saving I have put I Trading and for no mistake from my side I am penalised.

I had kept stop loss at 213,
212 which never got executed and was not able to exit manually too as there was no stop loss order on the order screen for a CO.
The price went from 213 to 208 and at 208 my Trade by default got executed . I have lost 1.5 Lakhs from this technical error,
Please do the reversal and refund my hard earned money

Please go in detail to the attached file and check in your system for the Technical snag which has costed my life earnings