First, access the tracking number menu for an AccuTrack 1-1 campaign. From the "Campaign" tab (what you see when you first log into your Mongoose account), click "Edit" below the Campaign Name.
Under "Campaign Options", click "Manager Numbers"
Then, click "New Tollfree" to access the inventory.
Select the preferred prefix from the "Area Code" drop-down, click the check box next to the number to purchase, and then click the "Request Toll Free Numbers" button.
The next screen contains a confirmation of purchase, confirm by clicking "Confirm Purchase". The number is now provisioned to the AccuTrack 1-1 campaign, live and directing any calls to the Default Destination Number of the campaign (or to the number you have set in the Destination Routing settings or Extensions).