You can void a label up to 14 days after printing for Royal Mail and up to 30 days after printing for Parcelforce:
- Select History > Shipping History.
- Select the arrow next to the shipment that you would like to void.
- Select Void Label.
- Check the box to confirm that you would like to Void the Label. This label can not be used once you have confirmed.
- Click Continue. Once you see the Refund Response message, click OK.
UPDATED: October 22, 2020