For the upgrading the gb plan, You get 50 new gb a month?

No. Think of it like renting a storage locker.

You pay a monthly fee to rent a storage space that has so much square footage. It’s the same space you rent every month. You don’t get a new storage space every month with the same amount of storage. You just continue to rent that same space. If you run out of space, you need to upgrade your storage locker space and it works the same way with iCloud storage.

You get continued access to the upgrade. It's a rental of space on Apple's servers, not a purchase.

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No. You get one more month of access to the same 45GB of the 50GB; the other 5GB is free.

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