how to renew icloud subscription
I want to renew so I can back up my device
iPhone 12 Pro, iOS 17
Question marked as
If you have an iCloud+ subscription it will renew monthly and take the payment from your payment method. See iCloud+ plans and pricing
If you don't have enough space to back up your iOS device on the free 5GB iCloud plan you will have to upgrade to one of the paid plans. See the linked page.