your account has been disabled in the app store and itunes

If you didn't follow the link, contact iTunes Support for assistance. See the Apple Support articles below for contact information.   

iTunes Support – world wide 

Apple Support schedule phone call      

If necessary, try Twitter

https://twitter.com/AppleSupport.          People have posted it may take an hour or more to get a response.

Did you follow the instructions in the link? you possibly need to update your payment method - Change, add, or remove Apple ID payment methods.

and here - Payment methods that you can use with your Apple ID