Disappointed in service received from FNB Debit disputes

Fnb debit dispute department is unable to assist me with reversing my money with was paid to a ********** website posing as Truworths, I have been in contact with FNB within 24 hrs, they sent an email stating that this was an agreement between buyer and seller, as far as I'm concerned, I had an agreement with truworths, not shopsass. They claimed that the otp had given them authorization however the funds was still pending on my side and refuse to do the reversal for me, their client. What kind of bank dont think about their clients insterest. They dont also bother answering my question, when I asked if my account is safe from these ********.

Regards, Salmaa