[Resolved]  Nokia 6300 — battery not working

dear sir/madam
i am the consumer of your mobile phone product.and i am satisfied with it.i have a nokia 6300 mobile phone which i am purchase on dated 20/01/08 from hotspot retail pvt.ltd shop no.3 & 4, property no.c1-a, m.s.c main vikas marg, aruna park laxmi nagar. last month (june) my phone's battery was not working.on dated 07/07/08 i give it in your nokia care (30/28 east patel nagar new delhi branch) they give me return date 15/07/08.they can't give me any response also they can't pick up thier helplines numbers.