Vodafone India — i have requested for discontinuation of number but they are sending bills every month

Address:

Mumbai City, Maharashtra, 400069

My vodafone postpaid number is [protected] which i am not using since last 6 months and as its inavtive i have asked vodafone to close my number several times on phone as well i have visited andheri vodafone misi store and malad store. They asked me to pay final amount 1 month ago and my connection will be closed but today again i rcvd 1800 bill. Now they are again asking for more money to close my connection and asking for non sense excuses to close my connection