Airtel — charged rs 300 as sms other on game loft which never used : cell [protected]

Address: 411033

Dear sir/madam,

My details are as below.

Name: rayagond l chougule
Cell no : [protected].

Its observed that, bill for the month of oct 17 - nov 17, rs 300 has been charged as sms - others

Kindly note that, sim is in basic nokia mobile, does not any game applications.

Moreover i never activated the link, how can you charge rs 300?

Its kind of stealing money from customers.