Hi guys! i'm new on this forum.I got an offer which i want to promote from a CPA network.Basically i want when the user completes the offer. They will be automatically redirected to a simple page where they can claim 1000 Satoshi.I know some basics in html and php.I heard something about postback.I dont want someone who have not completed the offer get that 1000 satoshi. Some help please? Thanks!