Offers and tasks
The biggest single payouts here. An advertiser pays for a completed action, and most of that reaches you.
An offer is a deal between an advertiser and a network: install this game and reach level ten, sign up for this service, finish this free trial. The advertiser pays on completion, the network takes a cut, and the rest is converted into Coins at the site's share.
Read the requirements before starting rather than after. An offer that says "reach level 10" pays on level 10 and not on level 9, and a partial completion earns nothing on most networks. The ones that pay in stages say so.
Credit is not instant. Networks confirm on their own schedule and a few hours is entirely normal, particularly on anything involving a trial or a purchase. If it has been more than a day, the contact form can trace it as long as you have the offer name and roughly when you finished it.