then go to your cc web site by opening cc desktop app>clicking cloud icon>cc web empty all 8 folders (4 in your files, 2 in shared with you, 1 in shared with you, 1 in deleted).
note: if you delete from your sync folder, your local files will be deleted, too. this is the only folder that affects your locally stored files.
click the lightroom link at bottom left of your cc web page and delete files from there. lastly, recheck your deleted folder and delete whatever is there.
and if you need to contact adobe support, use a browser that allows popups and cookies and contact adobe support by clicking here, https://helpx.adobe.com/contact.html?rghtup=autoOpen in the chat field (lower right), type AGENT be patient, it can take quite a while to reach a human
p.p.s. you can also use twitter to tweet @AdobeCare
p.p.p.s. if you're contacted by anyone (via email or private message), it's much more likely to be a scammer than an adobe representative. ie, double check for an employee badge if contacted in the forums and look for an adobe.com domain in the email address if you click reply to an email. then check again and be very suspicious. any other method of contacting (or offering to contact you) is almost certainly a scam, https://community.adobe.com/t5/using-the-community-discussions/staying-safe-in-the-adobe-support-com...
The Contact button shows the "Adobe Virtual Assistant", and this is not shown if you haven't accepted the cookies!!! That again is a bug, because the help should be available also without cookies approval.