That's weird, they sell Pero for 1/2 the price Pero sell it for themselves - Also they sell Waitrose food
Methinks it must be out of or close to best by date. Pero sent me free samples (2 x take-away foil containers full!) but mine turned their nose up at it - the hedgehogs had it instead. It's a shame as the ingredients looked really good - ie human-grade organic chicken etc.