[Resolved]  Airtel Postpaid — I canceled my postpaid connection, but someone else using my number

iam taken new connection the no is [protected] but some un known person no:[protected] his billing amount comming under my bill.i went to lodge a complent at Chandanager outlrt.but he didnot take care. Iam asked to convert to prepaid. Iam not atall use both the nombers.but frequently bill is comming to 2 no's.what i Mentioned there. so please lock the Both sim cards as given nombers.[protected]&[protected].if your not done.Iam going to ccforem.