You can view your one-time or recurring account charges at anytime from the "Control Center" by clicking on your account name (top right corner) and then the "Transactions" tab.
You will see a detailed view of your items grouped by type Service Name, Quantity, and total Amount.
Note: Use the "Start/End" date range boxes to search for charges rather than the default current week view.
Charges are pro-rated for the first of the month.
For example; It's the 15th of the month and you purchase a DID that costs $5/mo, you will be charged $2.50 today and the full amount starting on the 1st of the next month.