You can edit your team at the team page.
You have received the private link to the team page in the email about a successful registration
Now, if you cannot find the email, you can re-send the email followingly.
1. Go to the public team page of your team in the event
Click the team administration link
2. Type the email you used to register the team
If the email is the same as the one used to register the team, you will receive the link to your email.