1. Check the status' of your Campaign Members. They need to be set to Paid in order for the ticket numbers to be included in the Booked tickets on your event.

2. Go to your Payment Form and make sure that the Campaign Member Paid Status is set to Paid. If this field is left blank then they will by default be set to Responded.

Note: If you update the Campaign Member Paid Status field and tickets have already been booked, it will not update any bookings made prior to the change.  You will need to manually update the Campaign Member status' and add the number of booked tickets. Custom workflows could be created to make these changes, but note that this will affect any past Campaigns using that Payment Form.