Has anyone had their Platinum or Centurion American Express suddenly cancelled without explanation?

After 28 years as an u/AmericanExpress Platinum/Centurion cardholder with multiple business accounts, r/amex suddenly canceled all my accounts and voided over 5.5 million Membership Rewards points. No warning. No explanation.

After exclusively using Amex for all my personal and business transactions, being a loyal member, trusting them with my points as if they were the safest bank, I did not expect to inexplicably lose both my u/AmericanExpress points and cards.

I've called multiple times. I've tried every avenue I can think of. Every single call leads absolutely nowhere. No one will give me a reason. No one will connect me to someone who can actually help. I literally cannot speak to a human being who has the authority or knowledge to explain what happened.

What if this is a mistake? What if it's a computer-generated error? How am I supposed to resolve or even understand what happened if I can't talk to anyone?

After 28 years of loyalty and trust, I genuinely expected better from r/AmericanExpress. I thought they valued long-term customer relationships. I thought I'd at least get a conversation, an explanation, something.

Any suggestions would be appreciated.