State Bank Of India [SBI] — money has been debit from my account in the name of the merchant swoo

Address:

625005

Hi team

Iam holding sbi savings account in madurai. On 27/12/2019 an sms received in my mobile that rs 500 has been deducted from your account and shows some kind of transaction id and merchant name like debit swoo [protected] 25-. After thal i check my account via net banig and found rupees 500 has been deducted from my account. It was pathetic i did not done nay transactions regarding that the nhow come my hard earned money could be deducted. I need a justification for this or else ill file a complaint against the bank. I need a proper justification and a refund. I can see few of them also lost their money in this case