App Store and iTunes problem

That usually happens if there is a security issue or a problem with your payment method. In any case, contact Apple Support per the recommendations in here:

If a message says "Your account has been disabled in the App Store and iTunes" – Apple Support (AU)

How do I resolve this issue. I’ve tried changing my password, turning the phone off. And a host of other things.

Taylor,

If you get the message that your account is disabled, you need to contact Apple Support as recommended in the document linked above.