False advertising and staff that lacks knowledge

I ordered x2 nugget meal that comes with chips as advertised on your board once I was done paying and waiting for my order I read on the slip it says veggie bits ,so I stood up to ask one of your stuff members and they confirmed that it’s the nuggets I ordered so I asked why are they veggie as it does not say anything on the board sign and your cashier did not let me know .she went and called the manager who is also dizzy saying that all nuggets worldwide they are veggies and she points at a veggie burger saying the patty and nuggets are the same thing and she cannot do anything about it as they have already been defrosted.please make me understand why would someone buy veggie nuggets for a two year old and have stuff that are not even glued up with the menu