Is Mac charging cable covered by AppleCare+?

Hi, I’d like to ask a question:

Is the Mac charging cable (included in the original box) covered by AppleCare+?

My cable has visible wear and exposed metal from normal daily use. I’ve seen posts where users in other regions successfully had theirs replaced under AppleCare+.

However, in China I was told this kind of accessory is not covered, even though I read the AppleCare+ agreement and it clearly states that Apple-branded accessories included in the original packaging are covered.

Why are Chinese users being treated differently?

What is the correct way to get the cable replaced under AppleCare+?

Thank you.