Tikona — Tikona threatening me

Address:

Kanchipuram, Tamil Nadu

We got a connection on march, on thjat day itself we felt so many issue in broadband. and cancelled. But they have extend the period without our knowledge and threatening me with a lawyer. Telling that filed a case and need to do payment. But no notification came to me. Asked that guy and he didn't know what communication happened with me and tikona. But riased the voice and threated me for the payment. Can somebody help on this