On their website they tell you the ingredients and they do contain palm oil:
"Ingredients
"Milk, sugar, glucose syrup, vegetable fats (palm, shea, sunflower), cocoa butter, cocoa mass, whey powder (from milk), glucose-fructose syrup, hazelnuts, emulsifiers (E442, soya lecithin, E471, sunflower lecithin, E476), rice flour, skimmed milk powder, reduced fat cocoa powder, salt, humectant (glycerol), flavourings, sodium hydrogen carbonate, molasses, citric acid, whey protein concentrate (from milk), colours (anthocyanins, paprika extract).
"May contain other nuts."