How can I download the Apple Store app for no charge?

It is usually a billing-related issue. If your account has been disabled in the App Store and iTunes, it isn’t something that you can fix yourself. You will need to contact Apple Support. The following Apple article includes a link that you can use to contact Apple Support: If a message says 'Your account has been disabled in the App Store and iTunes' - Apple Support

This is primarily a user-to-user support forum; other Apple users like you.

We don't have access to information about charges to your account. Apple has a support article about charges — see each of the steps in the following instructions. They include information on contacting Apple Support if the other steps don't help. See: If you see 'apple.com/bill' on your billing statement - Apple Support

Hello ~ Go ahead an contact support as this is Apple’s way to let you know that there may be an issue with your account.

If you see a message that says 'Your account has been disabled in the App Store and iTunes'

Contact through link or by going to lower left and click on Support or:

Contact Apple for support and service

~Katana-San~