Perhaps you can explain something then, since you appear to be knowledgeable on this matter. On this[1] eBay item from a seller based in China, under their "Seller business information", they list

  UNIFIED_SOCIAL_CREDIT_CODE: 91440300MA5ED70C7X
.. what is that exactly, if social credit score does not exist?

[1] https://www.ebay.co.uk/itm/305629164114

That's a social credit score for businesses, not individuals.