[Resolved]  Tata Docomo — After Cancelled sim cards, again they charging bill

I cancelled my Docomo postpaid simcards by contacting customer care and main office. Once i called main office they said we cancelled your sim cards.. You no need to pay bill we cancelled all..But they again generating bill for not using the sim cards for past one year.. I contacted main office several times but they are not responding and taking steps towards my bill and sim cards.. I keep on calling main office.. Pls cancel my bill and sim cards. docomo Numbers are [protected] [protected] [protected] Alter number is [protected] Name baskar