Usually, taxes and shipping costs are not included in the Cashback rate. Please be sure to read through each partner store's terms and conditions.
If the amount is still not what you were expecting, you can click the link (red box) from your ShopBack app or website and forward the order details to us.
You may refer to this link to guide you to get the order details required.
For other cases, please write into email@example.com and we will be at your assistance!