Airtel Postpaid — duplicate copy of bills

this is rushabh shah...i had dicontinued my airtel card..n bill of the month sep-to october has not been recieved by me....
so i would like to recieve the bills copy as early as possible....
and in addition to that.. due to sum misunderstandin my bills have been paid by credit card as well as
by cheque...so ull have recieved d payments twice...so considering that ull have around rs 620 of ours which cannot be used by me so i would like to recieve it by cheque or demand draft........