State Bank Of India [SBI] — unsolicited otp

Address:

Pune, Maharashtra, 411005

I have received one sms on my mobile no. Quoting otp for online purchase of rs. 100/- at www.redbus.in on my atm debit card ending with no. 389. I have not made any purchases today. It appears someone may have obtained details of my account / card and tried a nominal txn of rs. 100/- so that if it is successful, funds lying in the account can be accessed by fraudulent means. I request you to kindly investigate in the matter as immediately as possible to safeguard my interests.