Reliance Bigtv — sun network telugu channels, etv channels not coming since 3 months

Sun network telugu channels, etv channels not coming past 3 months in my rdtv. I have purchased 1 year telugu pack. I have lost patience and money. Customer care executives not giving proper information about channels resume. Please give my money back. They are showing message as 150 or above recharge get cash back on account of some technical problems. But i have already recharged one year subscription and it will end on 16/06/2018. Why should i recharge?
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