Your transaction PIN is a 4-digit number that serves as an extra layer of protection for your account.
This PIN is required when you need to make certain transactions on Bamboo such as withdrawals.
Please click on "Account" at the bottom of your Bamboo app screen, click on the "Settings icon" on the top right corner of the page and click "Log Out".
Log back in with your phone number and your password and you should be prompted to create a transaction PIN.
After creating one, you can proceed with your withdrawal.