Airtel Prepaid Mobile
Deduction from my balance every day without informing the reason

My mbile no is 9840991286.(airtel).the company is deducting 20 paise everyday without assigning any reason. the validity of my prepaid card is till may. when i contacted the customer care executive through their no.121, he behaves very rudely with no intention to help.kindly help me and stop deducting 20 paise from my account balance.

thank you.