Prime Zone Services — refund of wrongful deduction of rs.20/- against prime zone services (not used)

I c. R. Majumder, user of airtel, today i have got a message of rs. 20 have been deducted from my account in connection with the using of prime zone services but it is reiterated to inform you that neither i have used prime zone services, nor downloaded such type of apps. Hence it is requested to refund of rs. 20 immediately. This is my second time deduction so i am unable to tolerate it and i will publish in the press if any step is not taken for refunding of rs. 20 in my account immediately.