Vision Direct have these contact lenses on sale at the moment. Seems a brilliant price from a reputable retailer.
£12.45 per box of 30. Free delivery when you spend over £50. 12 months supply for under £300 vs ~£354 on the high street.
They've got good prices on quite a few lenses so worth taking a look. I'm thinking about giving Air Optic Aqua a go at £8.99/box. Under £6 per month for silicone hydrogel lenses seems a bargain.