Bad Quality Blueberry ****in

I bought a ****in at Food *****s Market at the spring field branch and it said it has blue blue berry and pistachios in it and they charged me R18.99 and it was looking nice so i decided to buy it and when i got home i sliced it in the middle to my horror there where no blue berry on it a little liquid that colored it pink and just one tiny pistachio and yet they charged me R18.99 I am so shocked and there are many items thete that loks grat in the advert but when yu go there its old and roten.