Source: https://newyork.cbslocal.com/2018/04/24/china-assigns-every-...
Lending is not fully market driven.
This is not necessarily personal lending, it's grey market business lending, so it's not about 'credit scores'.
The whole concept of social credit is what I refer to as stupid-evil. For one its whole concept is obviously exploitable as a 'recruit the low credit and purge the high credit' list if anyone ever want to form an insurrection powered by their newly minted low caste. And that is without the obvious side effects of people reacting accordingly to the actual information like not trusting anyone with top-tier social credit as likely too powerful to be held accountable and will thus screw you over at the drop of a hat.
Unfortunately even the US has had a similar issue to a thankfully far lesser degree with the idiotic "Operation Choke Point" abuse of power. Such abuses should always be reigned in.