HOLE IN CHOCOLATE & NO RESPONSE TO EMAIL

On Sunday, the 1st of February 2015, I purchased a Kit Kat Chunky from our local Pick 'n Pay in East London (Retail Park). After taking my first bite, I noticed that the chocolate had a strange \off"taste & then I noticed that the chocolate had a hole in the one side & the chocolate had started changing colour in the hole. I then lodged a complaint / query on the Nestle website. I received an automated response saying that somebody will contact me shortly. It is now Thursday - 4 days later & still no response. I am extremely disappointed in Nestle"