FNB - How ca we not Help. #NoHelp

Complaint Reference ***. I received feedback from Micheala Naidoo today, 30/04/2020. She confirm that they cannot assist me to reverse a R405 unauthorized Telkom debit order, which I cannot do because FNB system does not allow me to do. They suppose protect their customers but they decide it is not their duty to do so. I wonder why is there a cap on amounts to reverse as a customer, if they do not want to do their job. Can I get sevice please.