Kraft Foods chief executive and chairman Irene Rosenfeld, has strongly rebuffed Cadbury's arguments that its bids were "derisory" and its company is "fundamentally unattractive". Cadbury investors have until February 2 to respond to Kraft's offer. Fallon is the UK's main agency of record in the UK and worked on famous campaigns such as "Gorilla" and "Eyebrows" in the last few years.