All the configurations need to be done at Value-added Service - Referral Rewards - Referral Settings.
Section 1: Page Configuration
Step 1: Click 'Page Configuration'
Step 2: You will be redirected to the 'Invitation page configuration'. Select the language you want to configure. Please note that each language need to be configured separately.
Step 3: Upload the posters of the correct size.
Step 4: Fill in the relevant details here.
Section 2: Function configuration
Step 1: Click 'Function configuration'.
Step 2: