What is proration?
FortKnoxster allows to upgrade your account with more storage at any time, even on an active PRO subscription.
Proration is the amount of credit received for unused subscription time/days when you upgrade on an active subscription.
Example: A user paid 1,000 FKX to upgrade to FortKnoxster PRO with 5GB included for a year. The user decides to upgrade to FortKnoxster PRO with an extra 5 GB, totaling 10 GB of storage, with 200 days remaining on the active subscription. The proration amount to be deducted from the new FortKnoxster PRO + 10GB subscription will then be:
1,000 FKX / 365 days * 200 days = 548 FKX