Hathway Cable & Datacom — connection disconnected but still send messages to pay

Address:

Pune, Maharashtra

Hi team,

I am prajot kulkarni my hathway account number was [protected]. I already disconnected my account in nov 2016 but today i received message saying legal notice is sent to me and need to pay 3634.74 to about legal action.
First tong is my connection is prepaid forcefully they converted to postpaid i already dropped mail to discontinue my service or convert my account to prepaid and send me new plan details but i did not get any response from them.
I received calls to pay the amount i told all the situation to them and forwarded all communication with nodal desk and customer care then call are stopped and they also agreed on my concern.
Hope you will help me in it.