Talking of Lindt the "Champs Elysee" box (445g) is available on Boots' website for £11.75 but it's in a 3 for 2 offer. You get 44 advantage points and if you spend over £50 this weekend you get an extra £10 worth of advantage points, plus there's free p & p on orders over £45.
I ordered today and topped up my order with some everyday bits and bobs like a couple of deodorants to get to £50.50 as the offer seemed too good to miss.