Apple's support glitch - .Mac (dotmac) accounts don't work properly

I tried Apple's new support system - Express Lane. It looked ok until I tried their Support Profile feature ...

Apple - Support - My Support Profile

... We're sorry, you are signed in with an Apple employee or contractor account that cannot be edited with My Support Profile...

I've seen this before. Old timers with .mac Apple IDs are incompatible with Apple's customer database. It's been years, but they can't make the conversion.

Apple is probably waiting for us to die.