load the item and click Revise listing` and change it, then click save at the bottom.
Careful on some of the postage your useing for some of your items, you have one item at £95 & free second class post, which is unsuitable at that price, in the event it gets lost or damaged in the post, or worse, the buyer claims to never have received it and gets refunded because you can`t prove delivery, you lose the item plus your £95 quid 🙂
