On air promotion, sampling and money off couponing will take place in the Smooth FM listening area throughout October.
The promotion will be based on the 'Square Route to Pleasure' strapline and will include listeners being asked to identify famous squares in London to win a weekend break to a European location and a luxury Ritter Sport chocolate gift box.
Trade support, including price and promotional deals for independents, will run alongside the campaign.
This is the first major consumer campaign, apart from sampling, undertaken by Ritter Sport and the company says it will be a pilot for future activity.
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