What is up with companies lying about AI customer service?

I called a banking company about a charge on my credit card. They connected me with someone offshore—no big deal, as it was 10 p.m. The first person was clearly an AI pretending to be human, but they kept claiming for over two minutes that they were not. I said, okay, whatever, connect me with a human. They then claimed to connect me with a manager. This person was also clearly also a bot. I talked to them for about a minute, and they kept insisting they were not a bot and even got a little aggressive about it. To double-check, I asked, “What is 2,483 × 93,742?” They gave me the answer almost immediately. I then asked, “What is 8,739,421 × 6,284,937?” and again got an answer almost instantly. Finally, I asked it to list out the digits of pi, and it did so continuously for over thirty seconds. For a third time, I asked to be connected to a real human. Finally, I got one. I pressed this person on why they have AI call centers where the AI claims to be human. They denied that they were using AI at all. I don’t care if there are AI call centers, but having them pretend to be human is insane.