There are a few ways to set your default address. On your computer, you can go to the settings and change your default address there. Alternatively, if you are filling out a form on the internet, you can often select your default address from a drop-down menu.
When you set a default address, it means that this is the address that will automatically be used for any new transactions that you make. This can be helpful if you frequently send or receive payments to or from the same location.
If you want to change your email address, you can do so in your account settings. First, log in to your account and click on the “Account” tab. Then, click on the “Settings” link and scroll down to the “Email Address” section. Enter your new email address and click on the “Update” button.