How to pay for iCloud storage

If you need to change or update your Apple ID payment method - Apple Support

//support.apple.com/en-us/HT213276

Remove a payment method from your Apple ID - Apple Support

//support.apple.com/en-us/HT203905

Manage your Apple ID - login

https://appleid.apple.com/?

Learn more

• Moving to a new country or region? 

Learn how to change the country or region for your Apple ID.

• Need to edit Apple Pay information? 

Change or remove the payment cards that you use with Apple Pay.

generic examples to seek possible answers : change search words to suit

https://duckduckgo.com/?t=ftsa&q=

how+to+apply+new+payment+method+to+my+apple+ID+account&ia=web

Not certain where this question is going, you may buy additional cloud

storage sync capability ~ but that's not 'real storage' in itself. It adds to

an Apple ID account if you keep buying. Otherwise make offline backups.

iCloud+ plans and pricing - Apple Support

//support.apple.com/en-us/HT201238

"You can upgrade to iCloud+ from your iPhone, iPad, iPod touch, Mac, or PC.

After you upgrade, you'll be billed monthly. See the monthly pricing and

plans per country or region in article/below." Other options include offline

physical storage such as USB drive, etc. and consider clones, too.