Just so you are aware, from the 1 October 2021, Royal Mail will be updating charges for instances where the incorrect Average Weight is declared on Royal Mail 24® or Royal Mail 48® Average Daily Weight Large Letters and Parcels products. These will cover the costs incurred when the average weight of your posting is mis-declared on your posting documentation and information contained within the barcodes compared to what is presented to us.

Details of these charges can be found on the Royal Mail Group Surcharges page: https://www.royalmail.com/surcharges