Proration adjusts your bill when you:
Upgrade mid-billing cycle
Downgrade mid-billing cycle
Change billing frequency
When upgrading:
System calculates remaining days in cycle
You're charged the difference between plans
For remaining days only
Extra credits added immediately
Example:
Upgrading from Basic ($9) to Pro ($29) with 15 days left
Daily rate difference: ($29-$9)/30 = $0.67
Prorated charge: $0.67 × 15 = $10.05
Next full cycle: $29
Before confirming a change:
You'll see a preview of charges
Exact amount is calculated
Confirm before being charged