Psiphon gives refunds, and you can request one through the Google Play Store or the App Store, or you can contact customer support via this email: firstname.lastname@example.org. You might have to wait up to a week to receive your money back.
we do have an acceptable use policy yes. We are currently finding the users then not allowing them to connect to our network at all by disabling their mac addresses on our WLC. We will still go this route when we find more users using psiphon, was just wondering if anyone has had any success actually blocking the app. 2b1af7f3a8