No Assistance with A *****ulent Online Transaction

There has been a *****ulent transaction off my Capitec account that I have no knowledge of (Online Purchase), I reported the incident while the funds were still pending but nothing could be done and I have not recieved any sort of help from Capitec, all that is stated in their response is "The outcome of the case is: Invalid. The transaction does not meet the dispute requirements." I am expected to just simply accept that this amount went off with my approval (As stated I have no knowledge of)