FNB provides bogus reference numbers and cannot assist with queries

I purchased a Desktop Monitor through the FNB shop, and received an SMS notification that they are tending to the purchase. A day later, I have not received any feedback, not even that it has been declined. I phoned them yesterday (30-11-2022), and spend over 40 minutes on the phone. During the wasted time, no one was able to assist me, even after I provided the reference code I received. I was transferred to no less than 8 different agents and simply gave up after the 8th agent wanted to transfer me to a department that I have already been transferred to, none of who was able to tell me anything other than they don't know and that I was transferred to the wrong department. Today, I phoned again and after I was transferred to the third agent, I gave up. I tried to use the chat function on the FNB app and was told to simply wait, they will contact me.