Some refer earn apps also provide pre-written messages or social media posts that you can easily share with your network. Giving Your Code or Link us visa f1 slotsfor Referrals. Once you have your referral link or code, start sending it to friends & acquaintances via email, social media, messaging apps, and word-of-mouth. You will be rewarded when someone uses your code or referral link to sign up for the app. Getting Paid and Complying with Directives.