Hi there, Thank you for reaching out. To be able to remove any account from your Cross Save setup, you must be able to authenticate it. If you cannot, then unfortunately the accounts in question will remain linked to Cross Save. Further, as Bungie entrusts players with the security and management regarding linking their accounts, we do not unlink any accounts on players' behalf. Thus, you would need to reach out to the support teams for the related platforms (in this case Steam and PlayStation) for assistance with the accounts in question. For more information about Cross Save and its intricacies, please consult our [url=https://help.bungie.net/hc/en-us/articles/360049498031-Destiny-2-Cross-Save-Guide]Cross Save Guide[/url].