We don't currently have an option for a one-off box, but is easy to swap your subscription to a different box size, which you can then swap back whenever you please.
To change your box size you can follow the steps on our other FAQ How can I change my subscription box type/size? Please ensure you do this before your cut-off and click on the 'Manage Deliveries' page to verify the change.
We would also like to note that our X-Small Fruit & Veg box is only available for weekly deliveries - you can find out why here
If you do have any issues please feel free to contact our customer happiness team at firstname.lastname@example.org who will be happy to help