can't view and download my bills

So in the View Plan Details page of your account what is showing under the section "Billing History"?

Post a screen shot of that page and section.

Also as far as copies of the charges for your Adobe subscription all of that should also be on your Credit Card Statement and or whatever other payment method you might be using. Look there.

Do you have an active individual account?  Try using a different device or browser that accept cookies and does not have script blockers.  Please log-in to your account below.

https://account.adobe.com/billing-history

If you still need help, scroll down to Contact Adobe on the same page.  In the chat box, type Billing Agent followed by enter key.

For Teams & Enterprise accounts, use your admin console.

Invoice help https://helpx.adobe.com/creative-cloud/help/print-receipt.html

or

This is a public forum, you need the link to Adobe support, not other users
Be sure to remain signed in with your Adobe ID before accessing the link below
-you must also allow 'cookies' in your web browser for this to work
https://helpx.adobe.com/contact/support.html
-click the chat icon at the bottom right of the page to open a chat session
-the chat icon looks like '3 dots inside a circle' at the lower right
-type AGENT into the chat window to connect directly to a person rather than the AI
Do be aware that Adobe's staffing is impacted by the virus, so wait times are long

Also: beware of answering anyone who sends you a private message
-click for more information about scammers https://tinyurl.com/10791730