It usually takes between 24 and 48 hours for the system to process a transaction and apply the reward from your Magic Giftcard. After making a purchase, the transaction needs to be verified.
Sometimes you’ll see a “Processing” label next to your purchase in the app. This simply means that the app is checking whether the transaction is eligible for a reward. Once this verification is complete and your transaction is correctly recognized, the cashback will be automatically added to your Cashback Sock.