IDBI Bank — money deducting from the account

Hi,
From last month small amount like 1p0 200 50 rs are getting deducted and we are getting acknowledgement message stating that some card trxn so soo money deducted

A/c n1779 dr for inr 50.00 cardtxn:visa-pos/payt. A/c bal inr 3005.24 (Incl. O[censored]nclrd chqs) on 07feb 21:32hrs. Call [protected] if card not used by you

Above is the deducted mesage we got that transaction was not done by us can u please check this issue this was hapenning repeatedly
Thanks.