Billing error family member precious purchase

Various self-help items related to a "There is a billing problem with a previous purchase" message that are apparently now NOT recommended over directly contacting Apple:

You get this message because there is a problem paying for something you or a family member bought in the past and this needs to be resolved before Apple will let anybody make a new purchase, even free items. It isn't a problem with a specific item, it's with the family Organizer's payment method.

This document explains how to 'Change, add, or remove Apple ID payment methods' on an Apple mobile device, a Mac, or a PC; click here --> Change, add, or remove Apple ID payment methods - Apple Support

- If you are updating an old card and have ongoing subscriptions you may need to first add the new card and make it the primary payment method before deleting the old card.

If your payment method is declined in the App Store or iTunes Store, click here --> If your payment method is declined in the App Store or iTunes Store - Apple Support

"There is a billing problem with a previous purchase." = "you have an unpaid balance in the App Store or iTunes Store"

- 'If you can't remove your last payment method or use no payment method with your Apple ID' click here --> If you can't remove a payment method from your Apple ID - Apple Support

I used to offer a set of suggestions based on Apple documentation as to how to resolve this, but as indicated by the officially Recommended solution in this topic --> Apple ID blocked because of billing probl… - Apple Community

you should just contact official Apple Support about a "billing problem" and let them help you.

Click here --> Choose your country or region - Official Apple Support Select your country, then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.

or:

Contact Apple for support and service --> "See a list of Apple phone numbers around the world." - Contact Apple for support and service - Apple Support