Balance Deduction for unsubscribed services

Location/place: bapatla,Guntur(dist)

Name of company/service: Airtel

Dear Sir,
I’m using mobile number +919704280018 of Airtel company.Since last one month this company is deducting balance for unsubscribed services.Many times I tried to contact with customer care but could not get connected and balance is being deducted every now and then.I’m fed up with such balance deductions.In last one month I’ve been charged with Rs.250/- and this company is still doing so.I request you to guide me what to do for getting back that balance and avoid such incidence.My e-mail ID is [email protected] do some needful for me.