iCloud change plan

Read this support article about how to downgrade or cancel your iCloud+ storage plan on an Apple mobile device, a Mac, or a PC. --> Downgrade or cancel your iCloud+ plan - Apple Support

- "If you don't have one of these devices, contact Apple Support to change your iCloud storage plan." To contact support, click here --> Choose your country or region - Official Apple Support Select your country, then a product.

What exactly do you mean when you say it does not work? Are you using the correct account if you have more than one? How are you trying to downgrade?

If you do not see the change you can always check how much iCloud storage you're using in Settings on your device, on a Mac, or on iCloud.com

- On your iPhone, iPad, or iPod touch, go to Settings > [your name] > iCloud.

- macOS Ventura: Choose Apple menu > System Settings, click [your name] at the top of the sidebar, then click iCloud on the right.

- macOS 12 or earlier: Choose Apple menu > System Preferences, click Apple ID, then click iCloud.

- On iCloud.com --> https://iCloud.com

ref: Check your iCloud storage on any device - Apple Support

Manage your iCloud storage - Apple Support

If it still won't show, report the issue to Apple --> Choose your country or region - Official Apple Support Select your country, then a product.

or:

Worldwide iTunes support - Choose your country or region - Official Apple Support

Downgrade or cancel your iCloud+ plan - Apple Support

"iCloud change plan: I upgraded my plan a couple of months ago, but I don’t need that much storage anymore. I am trying to change it to a lower one and it never works. And I am being charge an amount I want to change"

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Properly Downgrading iCloud:

1. Download All of iCloud, First:

Prior to downgrading, download all of iCloud. That way you do not lose any data, once downgrading.. Use my user tip: Getting a Quick and Direct "iCloud Drive-to-External Hard Drive" Download - User Tip

then...

2. Downgrade your iCloud Plan:

If you want to get less storage in iCloud, downgrading your iCloud plan is the way to go. Note that this has a monthly fee. Here is the link to user: iCloud+ Plans and Pricing - Apple Support. Note that this service is not available in all countries/regions.