With Bounceban's Sync feature, you'll be charged based on the number of unique emails verified each month. The pricing for each tier can be found on the pricing page (https://bounceban.com/pricing?type=sync), where you can adjust the "Or enter the number of emails you have in your CRM" slider to see the cost for each tier.
The system will automatically upgrade or downgrade your plan to the nearest tier as the number of unique emails verified changes. For example, if you're currently on the 50,000 tier and the number of unique emails verified increases, your plan will be upgraded to the next tier (e.g. 60,000). Similarly, if the number of unique emails decreases, your plan will be downgraded to the nearest tier (e.g. 40,000).
If you add more unique emails to your list before your next renewal, Bounceban's system will automatically upgrade your plan. The upgrade will occur immediately and the system will attempt to charge your card for the prorated amount.
For example, if you have a monthly Sync subscription of 20,000 emails that renews on the 5th of each month, and your Sync tasks are verifying 18,000 emails, but you then add 8,000 more emails to your list, bringing the total number of unique emails to 26,000, your plan will be upgraded to 30,000 emails. The system will then try to charge your card for the prorated amount. If the charge succeeds, the daily verification will resume. If the charge fails, your task will be paused until you update your payment method (https://bounceban.com/account/billing/portal). You'll receive an email notification indicating the status of the upgrade or downgrade.
Automatic downgrades occur at the end of each billing cycle before the subscription renews. For example, if you have a monthly Sync subscription of 50,000 emails with a renewal date of the 5th of each month, and your Sync tasks verify 48,000 emails daily, we'll check the number of unique emails in your lists on the 5th of the next month. If the total number of unique emails is only 38,000, your plan will be downgraded to the 40,000 email plan. If there are only 18,000 emails, your plan will be downgraded to the 20,000 email plan.
Note that the billing interval will not change during an automatic upgrade or downgrade.