I am unable to make purchases on my iPad

If you see a message that says "Your Media & Purchases account has been disabled," You can request reactivation.

If your Apple ID is locked, not active, or disabled - Apple Support

If your payment method was declined, add a different payment method and remove the old one. If you still can’t make a purchase, contact your financial institution or Apple Support.

If your payment method is declined in the App Store or iTunes Store - Apple Support

Hello~ What happens when you try? Are you receiving a message? If so what is the exact message?

~Katana-San~