Your personal details will sometimes change. You can keep them up to date in Account > Profile.
You can change these details yourself:
First name and Last name
Default Address
Billing Address
Phone number
Email address
Changing email address
If you're logging in with a social login like Google or Apple login, you will not be able to change your email address.
To change your email address:
Go to Account > Profile
Click the pencil icon next to your email address
Enter the new email address and your current password
Click Change email address
You will then be automatically logged out. Log in using your new email and you're good to go.