From the announcement:
We have a great FREE postage deal starting today on all our plastic boxed sets of figures and base sets. Postage is FREE worldwide from 14th March to 23rd March. The costs of everything has gone up in this world of ours and postage is no exception. So for the next 9 days we are relieving of you of postage costs. Why not take advantage of this very generous offer from Victrix and treat yourself to some superb quality miniatures.