Apple One Family iCloud Storage Update Cost

If your country is set to the UK the web site should have automatically directed you to the UK pricing just below the middle of the page.

Apple One - Apple (UK)

Did you click on the "learn more" on the FAQ section? It says:

"If the iCloud storage included in Apple One is less than your current plan.

You will keep both your current iCloud+ plan and the iCloud storage in Apple One.

If you would prefer to only have the storage included in your Apple One subscription, you can downgrade or cancel your current iCloud+ plan."

I only know what it says in the documentation. If you need to ask Apple about this:

Refer to this page for Apple Support features ➔ Contact - Official Apple Support

Select from the presented options until you find a solution for your issue, or see if there is a chat or phone call contact method offered lower on the page (you sometimes have to narrow down the options multiple times before this is shown). If you do not see your issue, keep experimenting with any series of selections until you reach one that offers a chat session or a telephone call and get the representative to redirect you.

This support article has various country telephone numbers for contacting Apple for support and service ➔ Contact Apple Support - Apple Support For some countries look under “Other” listing at the end of each region. Not every country has telephone support.

if you add 2Tb in addition to Apple One, the cost is £8.99. Or, you can upgrade the Apple One plan to 2TB and gain the additional subscription services. Or, you can add an additional 50GB or 200GB (or more).

Pricing is at Apple One - Apple