[Resolved]  Airtel / Aircel Postpaid Connection — about bill payment

sir,
1. i was take a airtel postpaid<[protected]> connection for use of internet by beetel modem.after 4 or 5 month my modem was damage and it was not working properly.so i decided to parmanently close my postpaid number.i paid my all pending my all bills and i closed it.after some month they told me your bill is in due.
2.my brother was take a aircel number <[protected]> and it was working properly.after one month bill came 13000/ rupee.he complained there.and after month cleared the bill was only 3000/rupee.that time i paid all bills and closed that postpaid number.next day i confirmed that my number closed or not they declared that was closed.after 2 or 3 month later they told me you payment is due.
please solve my problem .thanking you