I agree that companies in Chapter 11 have to notify their shareholders, but I don't know how they are supposed to do that. Arguably an Edgar filing would be a great way to do that.
While on the topic of WCVC and Chapter 11, I did a google search on: "West Coast Ventures Group" "Chapter 11"
and got a couple of 'interesting' search results, but they are from 2018 and 2019.
is from the 'edition' of: T R O U B L E D C O M P A N Y R E P O R T E R Tuesday, December 3, 2019, Vol. 23, No. 336
It had a section of West Coast Ventures Group, but didn't explicitly say the company was in bankruptcy.
So, it may have been true that trouble in 2018 and 2019 lead some to speculate that WCVC might have been a candidate for Chapter 11, but again, I couldn't find explicit evidence that the company actually filed for it (back then).