I didn't know either when I first started. It can be head spining. Lol.. you go to " my listia " scroll down, keeping an eye on the left side. You will see a place that allows you to verify, all you have to do is put in your address and click verify or whatever the directions say to do. If you decide to verify your phone number, word of advice, have your phone right there, they will call automated and give you a code that you have to put in. You only get one chance.