The following upgrade plans are available for your Cloud Fax subscription.
250 Faxes - $9.95/month
500 Faxes - $19.95/month
1000 Faxes - $39.95/month
Faxes are metered per page. So a 10 page fax (including cover-page) will deduct 10 from your 250 allotment.
If you exceed the amount of faxes allotted for your current plan, an overage fee of 10 cents per page will be applied to your invoice.