How to fix when u buy something online and it says contact Apple/iTunes support

Hi jaosn2020,

Welcome to the Apple Community

We are all Apple users, like yourself, so have no access to your account or details.

How to contact iTunes Support

(ie: when requested, in order to complete a purchase.)

• • Click on this link: Choose your country or region - Official Apple Support   
  • 2. Select your country
  • 3. Select: Billing & Subscriptions
  • 4. Select: Subscriptions & Purchases
  • 5. Select: Update payment method
  • 6. Select a chat session or a phone call.

OR

if needed ... try their website:

iTunes — Official Apple Support

All the best :-)

With macOS Catalina, your iTunes media library is now available in the Apple Music app, Apple TV app, Apple Books app, and Apple Podcasts app. 

See:

What happened to iTunes? - Apple Support

I changed computers and now I can longer purchase songs online through iTunes. It wants to direct me to a outside store