Vodafone India — closure of vodafone sim no-[protected]

The above sim has been lost and the lost has been reported and sim is blocked. now I wish to surrender the sim. you please block the sim permanently so that no bill is further generated in my name. You may kindly record my high appreciation for the service you provided so long I used your SIM. I however inform you that I am still using you service through another SIM IN MY NAME.
You please close the SIM No-[protected]. which has been blocked as mention above. Thanking you --------SUJOY KUMAR HALDER --61-F, SUREN SARKAR ROAD, KOLKATA--700010. dt[protected].