How to find:
From the profile page, Click the pencil icon in the top right corner (2) (which is just to the left of the download your personal QR code) to open the edit profile screen.
1) Do not save changes and return to your profile page
2) Update changes and return to your profile
3) Change/Remove your profile picture
4) Edit your display name
5) Edit your username
This is you private info, which is not visible to the public. If you would like to add another linked email address you can do so in app by tapping the 'Add email address', to change you linked phone number you should contact the support team in app.
Detailed Help Links:
From the edit profile screen, you can: