How do I change my name in my account?

Do you see a pink button My account in the top right corner of your screen? That means you are already signed in. Do you see the button Sign in? Then you have to log in first. 

When signed in, click the pink button My account in the top right corner of your screen.

Click the black button Change under the header Account details.

Change your first and/or last name. Click the black button Confirm. You have now successfully changed your name.