Spectranet — withdrawal of connection against wrong bill

Address:

New Delhi, Delhi

Sir
We have got spectranet zero bill pack against prepeyment for 6 month.Now they have raised a wrong bill of 390 rs against a said topup which we didnot made and for nonpayment of same they withdrawn connection from last few days.wen I called their customers care and talked with ravinder and aman they both denied to even lodge a complain fo this. There is no confirmation email or msg was send to check da authentication of top up so that we get a chance to cancel it if we havent did it.. We are feeling cheated as without doingvany transaction bill is raised on our name and internet connection is withdrawn which disable us to do some important bill payment.
Plz help
Rachana