Cadbury Nutties filled with Plastic

Hello, This is Rohit from Bangalore. I am a big fan of your chocolates. I just bought Nutties from a near by vendor. To my suprise I didnt chew them and found small pieces of plastic inside the chocolate. I still have the sample. I am really sad that i quality of your products are sick. Just imagine if it goes inside a child. I know you people really dont care. But i am not going to leave you so easily. Please let me know what to do? I will be waiting for your reply.