It's just been noticed that prices are wrong on the catergory page, for example see the following link and look for 'Rhododendron Gomer Waterer' the price is showing as £21.99 but when you click on the product it is only £14.99, seems to be a problem only when an item is out of stock, if i add one back in stock the price on the category changes. There is only one option for this plant so I have no idea where £21.99 is coming from, any ideas?