To withdraw money from your Plum Interest, please follow the steps below:
Open the app and go to the Pockets section
Tap on Plum Interest
Tap on the Withdrawal button
Choose the amount you want to withdraw and tap on Continue
While transfers from simple pockets back to your Primary pocket tend to be instant, it is a different case with withdrawals from Plum Interest and the money arrives in your Primary Pocket on the next business day.
The withdrawal will go to your Primary Pocket first. Then, you can withdraw it to your bank account.