false advertising

i bought the new mcdonalds pistachio icecream..its advertised with pistachio sauce, chocolate sause, and chocolate pieces...after purchasing i received some icream with a few pieces of kit kat when queried a white liquid was added to the top and im told thats how it it...why advertise something that you cant produce and this isnt the first time... bought the burger from the heist menu same story this mcdonalds is becomin terrible