By now you are probably used toGeni missions.  They are hard, but they have a lot of information packed into the lessons.  In this mission (Mission #5) you teach justin how to use his credit cards. 

Click HERE to log in with the username and password you SHOULD have already created.  If you have no username and password, then click the back button and click on the first Gen-I-Revolution game (the 401k one near the bottom of the page) and create one.