If you purchase a subscription box, you can cancel the subscription anytime. Below you can find the list of Nerd boxes that allows you to manage your box:
You can cancel a Nerd Box on your personal profile. If you decide to cancel the subscription, you must click the cancel subscription button and swipe the button to the right.
Keep my Nerd Box
Cancel the subscription
Be aware that your choice is limited by date. If you cancel the subscription after you’ve been charged you will receive one more Nerd Box.