[Resolved]  Tata Sky — Amount has been deducted and offer got cancelled

I have taken tatasky new connection, and i was given an offer as below.
~1000/- balance in my account
1month free subscription

When the installation guy came for installation, i clearly told him not to install anything if my offer or balance gets wasted as i will not available for a couple of months. He told me that he will install and keep the connection on suspension so that my money will not be wasted and also told me that, whenever i want i can just call them and to make it active. After a month or so, i got a message saying that my money got deducted as rental charges, and my free month subscription also completed. Hearing that, i just called up and mentioned the same. They came up with a solution that they can just refund 110/- rupees back. They kept on calling and did not refund my money back.