It's very strange that it was not in the group photo spoilers for 21K. Turns out it's NF256, which is not the 21K dark pink color. 21K is NF293. So that mini flap bag is from a previous season.
Here's the info from the official CHANEL website:
Dark Pink Silk Jacquard & Gold-Tone Metal MINI FLAP BAG
Ref. A69900 B06931 NF256
$4,000 USD
Dimensions 4.7 × 7.8 × 2.3 in
I attached additional photos to help you in case you still want the bag from the used bag market or via resellers.
SOURCE: www.chanel.com
Hmmm... I confirmed with several SAs this bag launches on 9/14. I even asked customer service. I managed to reserve the bag at a stand alone store who said it will launch 9/14. (Which is the reason they couldn’t ring it up). Another influencer (in London) also confirmed with an SA that its apart of 21k. I guess I will confirm when the bag is rung on Tuesday and I get the E-receipt.