There is 2 ways to earn by referral and by playing.Convert your coins into cash either Paypal or Google Play You might as well want to try its a good app. See also below paymentproof :]]
Referral Code: X2K3GK8
Link to the app: bit.ly/2Y0yozL
You also need to score 10,000 before you can withdraw.
Let me know what you think.