Airtel — non timely balance deduction

Address:

E 327 Sangamvihar,Nandgram,Ghaziabad, Ghaziabad, Uttar Pradesh, 201003

Sir, even a single day has not elapsed after the end of validity of my no but you just deducted main balance even without giving any prior info rather the main balance was deducted and the informed.
Also deduction has put me into a situation where i have to get it recharged again to use of the validity so why such balance deduction was made, i just want my money returned back