In order to change your details, you will firstly need to be signed in to your Dick Smith account.
To do this, please click the 'Sign In' option at the top right of the screen.
You may then sign in via Email, Facebook, Google+, PayPal or Twitter.
Once logged in, your first name will appear in the place of the 'Sign In' button. Hover over this to access a drop-down menu of your account settings, clicking on these options will allow you to edit the name, address, financial details and email address attached to your account.
If you do not already have a Dick Smith account, you can create one here.