Cannot Update Credit Card Info

Well - I've been trying for days to update the credit card info in the automatic billing.  They can't help if you call, the app is not working and the website is not working.  It just locks on the screen when you try to login.  When trying to call, you can't reach an agent unless you know some tricks - and then the agents can't even help when they do.  Can anyone answer if the billing website is down or if there is some other way to do this (other than switching providers).