Given sellers can only be paid via Managed Payments, how , and far more importantly why would you to give your credit card details directly to the seller ?

Especially to one registered in China

Did they tell you to give them your credit card details?

If so that is the time to report it, not just go along with it

And what has this got to do with the topic from almost 2 years ago?

And there is no reason you cannot contact a human

A human eBay cs will ask the same question