If responsibility for your HeySummit account has changed, the next step depends on whether your organisation can still sign in to the organiser account. Do not share passwords or login links in a support request.
If you can sign in
Open your user menu and choose My Profile, then select Update. Enter the new account email and confirm your current password. Select Save and complete the verification email sent to the new address. The new email must not already belong to another HeySummit account, and email changes have a 24-hour cooldown. For the full steps, see Change the email address on your HeySummit account. This changes the sign-in details on the same account; it does not transfer events into a different existing account.
If you cannot sign in or need billing details changed
Email [email protected] from your organisation email address. Explain which account or event is affected and what needs to change. Ask the team to confirm the account-access or billing-contact steps that apply. Account email and billing details should be checked separately; changing one does not establish that the other has changed.