https://www.godaddy.com/en-uk/help/update-login-details-for-a-wp-premium-support-site-27273
Update login details for a WP Premium Support site | WordPress Premium Support - GoDaddy Help GB
Learn how to update the FTP and WordPress login information for your WP Premium Support subscription.
update login detailswp premiumsupport sitewordpressgodaddy