I thought Centurion Titan was the name of the metal Centurion cards Amex once tested the German market but held back from for a ransom. I only have second-hand info there since the person I know had long cancelled the card - no idea if the fee was indeed an eye watering 40k. Was it also a thing here?
Btw - German Cent members have put up with some nonsense over the years. They also had a different design for a few years, and Amex allegedly told them it was an upgrade and charged them imitation fees again.