what to do with "returned"/unsold traffic? solution is here
 

just would like to share that I`ve got solution for returned/unsold traffic - you can easily convert it with this program - itmcash.com - sms micropayments converted very well with proxy traffic and traffic returned from traffic brokers. This program also have trafficback url (I use AFF for this purpose)

repeated transactions (like rebills) will bring you good feeling everyday ;)