Hi @oneilljake11,
Welcome to the EE Community
Unfortunately once you have activated the Xbox Game pass with a Microsoft account it is not possible to change the account with the current subscription.
What you would need to do is remove the Game Pass Ultimate subscription from your EE account and then re-add it which will then trigger a new activation process to set it up on the account you want.
Depending on how you have the Xbox Game Pass through EE you may be able to do this via the app or website, if not though please contact us and let one of our guides know the issue and they will be able to help.
Alex
