Why did my Apple ID get disabled in Apple store

A very common reason why an Apple ID may become disabled in the App Store is if you had initiated a charge back from Apple. Meaning you maybe had unrecognized charges from Apple stemming from an in-app purchase, a subscription renewal, maybe a free trial for a subscription you forgot about and had charged, whatever the case may be. If you had contacted your card issuer to dispute those charges, that would result in App Store disablement mainly because reporting unrecognized/unauthorized charges to your bank would indicate that your payment method was fraudulently used. So for the safety and security of your payment method, the Apple ID linked to that payment method gets disabled as a precaution. If you ever have unrecognized charges from Apple on your billing statement, check your purchase history in your settings. To resolve this issue, you would contact Apple Support.

See the Apple Support article(s) below. 

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

Contact iTunes Support for assistance. See the Apple Support articles below for contact information.   

iTunes Support – world wide   -

Apple Support schedule phone call     -

Billings and Subscriptions   -

If necessary, use Twitter or Messages.

Apple on Twitter

Messages chat with Apple