Zerodha — service is very poor

Address:	Bangalore, Karnataka
Website:	www. zerodha.com

I have an a/c in zerodha. Bought qty. 440 of gvkpower @25.25, when it goes up upto 25.6 whats to sell/exit. But unable to do it,. Every time when put request to exit, it became rejected. Called the customer care, they dont pick-up the call.
E-mailed to the support team for an early solution to exit.
Gave aticket no, thats all.

Mean time the stock goes down i am in loss.