I have made the payment for my last bill and given the application for disconnection on 11/05/2011 with complain number 152570872 and 152570896 and made the full payment on 08/06/2011 vide receipt number AMIP15489397 by e-payment but they have further raised a bill after my application for disconnection and now they are calling me for further payment and harassing me by saying that they will file a case against me.