Hathway Broadband Chennai — offer scheme hoax - bad service

Address:	Chennai, Tamil Nadu
Website:	Hathway broadband

I have a Hathway broadband connection from last Oct. This year February (28th) when I renewed the connection I was told there was a 3+1 offer running in the 3 months extension scheme by which I get one month extra. End May I got a notification stating that my connection was due for renewal. When I followed up with customer care (multiple times) I was told that there was some technical error and if I were to renew the connection for one month they will enable the extra one month offer for me, which I trusted and renewed. Now in July I am again asked to renew. I have raised a complaint but the complaint keeps getting auto closed without any action being taken. And on the other side Hathway billing team keeps finding me for renewal.
I am very disappointed and feel cheated with their service.