If I upgrade my iCloud storage subscription, do I basically lose my previous upgrade?
As of today, Apple's iCloud storage upgrade options look like this:
- 10 additional GB (15 GB total): $20/year
- 20 additional GB (25 GB total): $40/year
- 50 additional GB (55 GB total): $100/year
If I purchase the 10 additional GB plan today, I pay $20. Let's say that six months from now I decide I need more storage and so upgrade to the 20 additional GB plan.
Do I pay $40 at that point (as opposed to an additional $20 upgrade of the first plan, or some kind of prorated thing)?
Assuming that I do have to pay the full $40, do I drop down to the free level a year after that, or do I drop down to the 10 GB level for six months and then down to the free level?
I've not had much luck Googling this or searching through Apple's support pages, so I'm hoping someone here has experience or (better) can point me to something definite.