I can’t download apps because my iCloud has been disabled

See this Apple support article—>If you see a message that says 'Your account has been disabled in the App Store and iTunes' - Apple Support

According to: If you see a message that says 'Your account has been disabled in the App Store and iTunes' - Apple Support

"Contact Apple Support for help.

If you see a message that says "Your account has been disabled in the App Store and iTunes," there might be a problem with the payment method that you have on file.

When you see the message, don't try to edit any of your account information. Instead, contact Apple Support for help."

See here: If your Apple ID is locked or disabled - Apple Support

or here: If you see a message that says 'Your account has been disabled in the App Store and iTunes' - Apple Support

depending on the exact text of the message you are getting.

I can't guarantee a solution, but see these documents: 

'This Apple ID has not yet been used with the App Store' error and

This Apple ID has not yet been used with the iTunes store. Please review your account information". How do I get rid of this error on iTunes? https://www.quora.com/This-Apple-ID-has-not-yet-been-used-with-the-iTunes-store-Please-review-your-account-information-How-do-I-get-rid-of-this-error-on-iTunes

Possible Solutions to Fix “Apple ID Has Not Been Used in the iTunes Store” Error https://www.unlockboot.com/fix-this-apple-id-has-not-yet-been-used-with-itunes-store/ 

Fix This Apple ID Has Not Yet Been Used in the iTunes Store 

https://www.igeeksblog.com/apple-id-has-not-been-used-in-the-itunes/

Also see the results of my search here: Apple ID Has Not Been Used in the iTunes Store

I'm trying to download an App into my new iphone8

I get: This apple Id has no yet been used in the itunes store and then it goes on to say: "tap review to sign in " when I do, I get a blank page

Also, I have updated my acct with credit card and addresses Etc

BobMac1205

That is not the same problem as posted by the OP. I suggest that you start your very own thread with that question.

Using App Store - Apple Community would be a good Forum to use.