You can edit your team name on the website - just login and visit the “My Team” page.

On the same box as the team name and member photos, there should be a cog icon - clicking this should open a dropdown menu with a link to the edit page where you can change the team title.

Edit team link on my team page

To edit the team details, you need to the the owner - i.e. the user who created the team.

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