I need to change my credit card information but when I get to the page the info just doesn't drop down. I dont know if there is any other way to update that or what shoul I do?
Are you signed in with the Adobe ID associated with your plan? If so, you may want to try accessing the Plans & Products page using a different web browser or, alternatively, allowing pop-ups for Adobe.com on your current browser.
It sounds like you're accessing the Plans & Products page okay and are just unable to proceed from there. However, just in case, here are step-by-step instructions for changing a credit card via Plans & Products: Manage apps and services, change your credit card, upgrade your plan, and more.
In the event the above steps do not solve your issue, I'm moving your question to the Adobe Creative Cloud forum, where they are best equipped to answer questions about membership and payments.