FDREF73114
Excludes: Clearance, Schooltex, Lego, Apple, Computers & Tablets, Mobile Phones, Gaming Consoles, Televisions, Cameras, Grocery (Confectionery, Food & Beverages, Pet Food, Baby Consumables, & Cleaning Consumables), Health & Beauty, Furniture, Appliances & Whiteware, RedRack, Gift cards, Charity Bags, Prepaid Cards and Mobile Top Ups. The lesser value product will be half price. Not in conjunction with any other offer.
Note the coupon code is for free shipping, taken from Original Coupon Deal. You don't need a coupon for the buy one get one half price deal. This is a Singles' Day deal, so today only. Remember that 50% off the second item means 25% off each item for two assuming they are equally priced.
I didn't test if the free shipping code still works, there are reports it doesn't. If it doesn't work for you, they are still doing $1 delivery for orders using the app, see this deal . I think you can probably login and add to cart via the main website and just complete the order via the app if you find that easier.