When users have their Collection page (T161170), we can provide an easy way to 'return' granted access. A user might have received 12 month access to a particular publisher, but later decide - for whatever reason - that they no longer need it and would like to free up a space.

On the collection page we could add a small red X, or similar, which users can click to de-authorize themselves from having access to a particular proxy-based publisher (not bundle). Users should see a confirmation page that explains what will happen. This button should set the expiry date on that authorization to yesterday. We could simply delete the authorization, but it might be useful to know that an authorization did at one time exist.