Bajaj Finance — Cash deducted without any notification

A sum of 117 has been deducted from SBI account on 12/07/ 2021. as of my bank statement the amount has been taken as CMP MANDATE DEBIT. No further details regarding this transaction are available. I have no pending EMI nor any other transactions in near future. I even tried to contact bajaj finance but am totally disappointed by the service, no provision to contact a executive nor any way to mail them regarding this. i woud like to know the reason of the deduction and need my money refunded.