Referral Bonus usually comes with a set of requirements that needs to be fulfilled before you can unlock the Bonus. Please ensure to read through the terms and conditions for the Referral Bonus here: https://www.shopback.ph/referral/invite
To check on this from your end, click on Cashback Overview > Click on the bonus entry.
You can refer to an example of the criteria as per the screenshot below :
For further clarification, do reach out to our friendly Customer Support Team!