CDN case
This happens when the repository's bandwidth consumption over the past month has exceeded the bandwidth provided in your plan. Visit your repository's Settings > Usage Dashboard to see the details of your CDN consumption. (See our pricing page for details).
The details should appear on your invoice as Bandwidth (per gigabyte).
pro-rated case
The difference between a plan's price and the total amount in your invoice is due to how the plan's billing system works. We generate the first invoice after a plan upgrade for more than 30 days. On the invoice, you will find two separate charges:
- A pro-rated time charge for the month you purchased the subscription plan until the renewal date.
- A regular charge from one month to the next month.