You can get yourself a free Cadbury selection box at Cadbury gifts from TopCashback. Just follow the link to TopCashback, register your details and purchase the product through their link and you will get £10 cashback on a £10+ spend.
Click on “GET IT HERE” button, create a free account on TopCashback, use their link to visit Cadbury Gifts page and make a purchase. You will get 100% cashback for the amount you spent.