Hathway — Not getting internet from the day I have got installed

My account number : [protected]
Before one week they have established the connection and said by two hours it will get activated ... but still the internet is not active, I am loosing my validity...no customer care number was responding...
I would like to cancel my connection..please accept and refund my amount
I am staying at vemana colony, Chandanagar, Hyderabad
My phone number:[protected]