Prime Zone Services — prime zone

Got a message saying that rs.20 has been deducted from my account though iam not using any primezone service. I have not noticed that rs.20 has been deducted and the message also i have not noticed. I just noted the message yesterday. Please check and refund my deducted amount. Please acknowlege my complain. Message appears like below:"thanks for using primezone. You have been charged rs 20.0 from your airtel mobile account. For more services, call 56789

Mobile number is [protected]