Why can I no longer download apps to my iPhone?

Contact Apple Support, after reading this support article:--> If you see a message that says 'Your account has been disabled in the App Store and iTunes' , and use the following link:--> https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362

Regards

Giulio

What happens when you try? Are you getting an error message?

How's your iPhone internal storage on Settings>General>iPhone Storage?