Disgusting Service

I contacted FNB on Friday 22/09/2017 regarding a debit order that I needed to be reversed, I was instructed by the agent to call on Saturday (23/09/2017). On doing so, I was unable to get through to any agents using the contact numbers ********** 404. I spent in excess of an hour and eventually called the complaints line. The agents informed me that the call centre is opened until 19:00 on a Saturday. I have been unable to get through as the call just drops and the automated system reply delivers a message that working hours are from 08:00 to 13:00. I will not be paying any additional fees as this is disgusting service. I would not recommend FNB to anyone!!!