This means that the Cashback that you have earned from your transactions have not been validated by the online store yet. They will take between 1-120 days to validate depending on their policy.
Once validated, your Cashback status will turn to "Ready" and you may continue your transactions as per usual provided that it is abide by the partner store's Terms and conditons.
**Disclaimer: Each Validation Period varies from each partner stores. It is subjected to each store's cancellations, returns and exchange policies stated by the Partner. The standard policies typically will take up to 78 days while some would be longer. This allows the partner store to validate the order and to prevent fraudulent transactions.