Flex Quotas on Unlimited Plans
To prevent abuse, all subscriptions have a flex quota for Compress API usage that represents normal usage on that subscription level. If you reach the limit, contact us to see if you can have your limit temporarily raised. Alternatively, you can wait until your next billing cycle when usage totals will be reset.
If you still need more credits, you can purchase one-time boosters with a 6x (83%) discount.