You can do this by following the steps below;
Sign up on the Bamboo app.
Tap ‘Treasury Bills’ on the homepage of your app, read the information displayed then click ‘Proceed’ to continue.
Select the tenor you would like.
Input the amount you want to invest and click ‘Preview Investment’.
Review the details of your Treasury Bills purchase, then click ‘Proceed’.
Proceed to select the payment type to complete your purchase and viola! Your purchase is successful.