First, you must download Whaff Reward application to your device. You can download that on Play Store
After that, install the application and sign in with your facebook account. Don’t worry your account will secure….:v
Then, you will find a coloum that you need to fill that with a code, but don’t worry you can enter this code “EV01791” (this code has been modificated) after entering the code you will get $100 automaticaly.
After all have fun with that ,you can change that $$$ to google gift card,itunes gift card ,etc