From time to time, we run upgrade offers for existing subscribers looking to extend their current plan to a longer term subscription e.g. from a 3 month plan to a 12 month plan.
You are able to see any eligible upgrade offers in your final month of your subscription (or any time as a monthly subscriber) Once logged into your Birchbox account, you can head to ‘Account Settings’ and then to ‘Box Details’ and then you can click ‘Change Subscription Length’ to upgrade your subscription.
If you choose to upgrade, the payment for your new subscription cycle will be taken automatically. If you have already paid for that month's box e.g. March and upgrade in March, your new subscription cycle will begin in April as you can only receive one box per month.