Delete Addresses from "Collected Addresses"

Hi, it's Annabelle.

I'm having trouble deleting all the addresses in Collected Addresses, as most of them are email addresses I don't even recognize. Specifically I want to delete them because I keep having spammers appear in my Inbox. This is despite the fact that I've set a rule to tag emails from certain email addresses with "spam". There's an email address that is bothering me because I'm not a customer with them. [Edit: Personal Information]. Particularly it's a phony one, as I don't have a Uniqlo account, and I've checked to see what their official email address is via Stay Vigilant Against Fake Websites, Emails & Accounts pretending to be from UNIQLO | UQ CA | UQ CA Customer Service. I want to delete all addresses from "Collected Addresses" since all the email addresses I associate with as a customer are in my Xfinity "Address Book". I know others have this same problem with Collected Addresses, where they "Select All", and the "Delete" button becomes marked as "Unavailable". Since I am sight challenged and don't use a mouse, just a screenreader and a keyboard, I need to find a way to only receive Emails from contacts in my "Address Book", and not "Collected Addresses". I tried posting this on Xfinity Community Forum, but it won't let me select a category or a topic (which both are required), as when I do, there are "No results found". Please help!