This will make you go hmm until you take .1 second to think about it and realize that Twix wouldn't offer more chocolate for the same price and neither would any other company, for what amounts to a joke a 12 year old heard from his uncle in the south.
The picture always has the dark Twix broken and added to a longer piece to make it appear longer. Your main clue should've been that the packaging is the exact same fucking size. Your second clue should've been the break at the 1/3 mark of the dark twix.