Must like Sunsilk on Facebook, then go down to the 7 Day Challenge tab on the left, then click the brown circle that says Take the Challenge and allow thwm to access your info. then fill in the form, your whole address goes in the address box and for the cell phone number I just put in my home phone. You will recieve a kit that lasts for 7 days. Good luck everyone. It ends July 15, 2011. Sorry they ran out!