Airtel — overcharging in the name of offer

I am kuldeep chand, an airtel customer with postpaid sim no. [protected] and registered email id - kuldeep. [protected]@gmail.com. This post is with regard to the wrong data charges included in my airtel bills.

On april 17, i received an sms from customer care airtel. That i've received a surprise offer from airtel.in the offer, it was mentioned that if i send an sms by writing surprise and send it to 121, i shall receive 2 gb of extra data for 3 bill cycles free of cost. I happily subscribed for the offer and started using it thereafter. I received the e bill on june 9 from custmer care for mob no [protected] of rs 7150/- for using 2gb data for 1st cycle and rs 6474/- for using 1.7 gb data for 2nd cycle.in sms it was stated free data is valid with your current plan and boosters. So it is highly objectionable from a company like airtel to charge 20 times to a free data when it is competing with company like jio. I therefore request you to refund the wrong bill money you have charged if you think or tell my fault that i am panalised like this. As this is company provided sim the bill is deducted from my salary and deposit in airtel a/c. I lodged a service request no 78871415 but no result from a company. I talked to customer care, accepting the mistake but not able to act. I again request you to act on my statement and do something convincing. Yours kuldeep chand mob [protected]