Debicheck frustrations with FNB as a brand-new customer

Last month I posted a review of the bad service I had been receiving from Standard Bank, and the decision to move to FNB. BIG MISTAKE. As a brand-new customer, I have been through the trenches. After trying to set up debichecks from Wesbank and Dial Direct for example, these get declined by FNB. I have now spoken to 3 different departments, no one willing to take accountability. We have now come to a point where my issue has been escalated to a technical team. How is it that in 2025, and with a brand-new customer, there are no definite answers or solutions, as if I'm the first person in history to experience this unique issue? I am livid, and don't know what to do anymore.