If the user clicks on "no commercial value", an automatic value of £0.00 is assigned on the printed form. This guarantees that Irish Customs in the AnPost Office will reject the item and return to sender. I know this; I have spoken to them about it. They say a nominal value of £5.00 should be assigned. It is a disaster for my business, as training materials necessary for Irish trainees to use on an agreed date have not arrived, so that the arranged training date has had to be abandoned.