PWCC listings are being removed in chronological order - from newest to oldest listing. Anyone can run this check and see. Click on any new listing and it will show up as "no longer available." Refresh and the last 100 or so listings will disappear. This is definitely happening. Cannot speak to authenticity of underlying email.
https://www.ebay.com/str/pwccvault?m...&_sop=10&rt=nc