The way I see it is that you can only agree to the rules on the regular website not the mobile version. Then agree to the rules. Click info on the live chat box. When you do there should be two different buttons that says "Agree to the rules" and "Read the rules. Click "Agree to rules" and you begin there. If you didn't pass it you have to wait two hours in order to take it again.
Remember to read the rules CAREFULLY and CLEARLY!