I had given a written application in the months of October-November 2007 to disconnect my MTNL Dolphin mobile connection & according to the procedure described by the person who guided me to cut the connection had given the application & handed over the sim card to the MTNL office. Then I payed the bill that followed because it was for the month when my service was active. But after that the again sent a bill in the next month when I had not even used the services. I had even notified the MTNL office who said it might have been sent by mistake!!!
Now, after 7 years of sleep, they have woken up & claim that I am due to pay about 5 times the last bill they sent me. When enquired into, they say that these are of the preceding months. But I had never defaulted any payments & had regular payment history. Also, if at all I had forgotten any bill, it adds to the next months bill. So when I say I payed the last bill, it is clear that I cleared all dues. They are asking for a receipt now. Who would keep receipt of some dumb telephone company for 7 years.
Basically MTNL is pathetic, so don't ever use their services or your grand children will keep paying bills which even you did not use.