Mahanagar Telephone Nigam [MTNL] Mumabi — landline is dead for over a week

Address:

Mumbai City, Maharashtra, 400703

My landline no. 27822249 is dead for more than a week.in spite of several complaints nothing happens. Every day i register a complaint but apparently they show it resolved even though it is actually not resolved and i have to register a fresh complaint next day. There is a problem with the cable which is mtnl property and hence they need to change it, however, linemen demand money from us.