Consumer Redressal

On 1st of September 2014, I submitted a broken Reliance dongle at the service centre in Panjim. Two weeks later I received a replacement. After I had activated the connection again, it turned out that the dongle did not work. I immediately asked Reliance via customer care to terminate the contract and I announced that I would not pay for the time that I could not use the dongle. I could not show the worksheet as the service centre had kept the worksheet when I got the replacement. Since then, I keep receiving bills although I constantly sent emails to Reliance customer care asking to terminate my contract. They asked me to wait for five days to resolve the issue. Instead, they did not terminate my contract and kept billing me for a dongle that I could not use and an internet connection that shows zero usage. Now Reliance legal is intending to sue me for 1,547,- Rupees. Please help. Kind regards Kornelia C. Rebel