I keep getting a error message "your account has been disabled in the App Store and iTunes." how do I fix this?

This is usually related to a payment issue.

If it says your App Store / iTunes is disabled, you’ll have to contact Apple Store Support directly; read this article: 

https://support.apple.com/en-us/HT208856

have They helped you it keeps saying for me that they can’t help me and it says the same thing for me when I downloading a app