Airtel — please block the transaction and refund to my account

Dear sir/madam,

On the date of 17.04.2018, i had received a fraud call from the number:[protected] and said me that my sbi card is going deactivate and to reactivate share the card details, as he gained my trust he asked all the details of of my sbi card while then he asked me an otp and then he made a transaction of about rs.19566.0, as i request you to please stop the transaction and refund my money in to my account deatils of transaction are given below:-

Thank you for using your sbi debit card 459xx4950 for a purchase worth rs.25, 000.0 on pos airtelmoney at airtelmoney txn#[protected].

As i have already filed the case on cyber crime police station and may request you to please do the needful it would be really greatful if you help in this matter.