Link to Billing Profile from Billing System

Would it be possible to get a link or something pointing to the "Billing Profile" under the "Billing System" menu item.  We have clients log in and go to the billing system to change their payment method.  That's a logical place to go, but if they click on the Payment Form button that they see, it only pays the bill one time and the next time we invoice them the charge won't go through again.  Then they call us confused as to why the updated information isn't there when they put it in last month.
 
Thanks!