Deducting cash withdrawal fees on credit card account (with no atm card) dotmant account/

I have not used my credit card for more than a year, but noticed they deduct multiple "cash withdraw" fees, twice just for the month of February and I dont even have an active card (expired in December) . I tried contacting the banks helpdesk whatsapp number, but after 2 hours they still cant help me!! What am I to do if charges are deducted ********ly. Like I mentioned I dont even have an active card, and the account is not in use, but me statement shows "cash withdrawl " fees!!