Hi there,
You can use
this traffic broker which is my best one in testing sponsors with the lowest prices CPM for pop under traffic.
There is a minimum of $200 to load by paxum and paypal and $500 by wire transfer.
High quality traffic from USA is $0.08 CPM.
You can choose from many options how to receive your traffic as you can do to other major traffic brokers.
Any questions about this I will help you ...