Cadbury - shame on you for robbing customers

Im not someone who complains but if i feel im getting ripped of its another thing. I purchased 4 Lunchbars from a Spar down the road from me and every single one of them felt very small in the actual packaging. One was almost half the size and the rest was like 3/4 size. I then thought let me actually measure them on a scale. It says 44 grams and it weighed 41grams with the wrapper on it when i took it out if the packing it was 40 grams. How can a huge business like you guys rip of customers like that. If it was 1 maybe yes but every single one....shame on you ...i have all the pictures to prove it if you so request