Dent Can pay you up to # 750 mb per referrer. The more you refer the more your points increase and you can convert it to mobile Data.
Tricks you need to apply on the free internet app
Click here do download the app > you can join with your Facebook account to see your dashboard.
On the dashboard you can get your referrer link to invite your friends on whats app, Facebook, twitter etc. to download the app.
Each time any one download the free internet data app through your link you get credited.
It is not necessary that your friends should download the app, you can share the app to them via xender, flash share or any other file sharing app.
Then install the app but do not open yet, paste the refer link given to you on your friend whats app account or Facebook. Then he/she click and will redirect him/she to google play, google play will indicate that the app is already installed and prompt to open it from the store then he can register and immediately he or she register you get credited.