Hi Laurie, 

Welcome to Box Community and I’m here to help!

To help with your credit card update, please reach out to our Billing team using this link or email them directly using billing@box.com.

Thanks for posting! 

It's impossible to update your credit card on this site. Why? It sucks big time. 

On every single other site I have my cc info on--like 10 sites--- it's easy to update. On this site it just won't do it. Makes me want to go somewhere else. 

They seem to want to avoid you cancelling your account without a sales person intervening.  I can't think of another reason.  And, nothing has changed in 4 years... that was my request 4 years ago, and I need to change credit cards again... it's no easier than it was.