Bank refused to reversed an unauthorized debit on my account

There was an amount of R1794 that went off my cred card without authorization and I contacted absa bank about this. They told me they cannot help me as the site I was on had terms and conditions and there is nothing they can do and that I must contact the company who debited my account. They took more than a month to respond to me with such a pathetic excuse. If our own bank cannot reverse the transaction, then who is supposed to help us??? I am so unsatisfied with the response I got regarding my dispute