Anonymous on "reliance telecom and Krishna.Services@myreliancemail.com"

sir,
i purchased a reliance postpaid 3g dongle and after sometime i request reliance to stop my services and i paid the balance amount. After sometime this number was reactivated by them and again they was forcing me too pay, After getting conformation on mail from ID "Krishna.Services@myreliancemail.com" ( i also include reliance official mail id in CC "customercare@relianceada.com") of full and final settlement of amount 1600 i paid the bill again but after some time
i have been repeatedly threatened to present before Delhi Highcourt for a filed complaint, for non payment of closed connection bill,Till then I am getting repeated threatening calls like arrest or present before Delhi Highcourt.
I got a similar call today from +91-7827008745
Please guide..