The free sample is advertised on this page. All you need to do is select your country and send an email with your details (name and address minimum) to the address provided.
The samples being offered are:
Free A. Vogel Sample Pack with Seasoning Salt, Coffee Substitute and DVD
80
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Apparently the coffee substitute is free from caffeine:
Free From
FREE from Added Sugar, Caffeine, Cow's Milk, Yeast, Egg Protein, Lactose, Soya, Sesame, Casin, Artificial Flavours, Preservatives or Colouring, Peanut, Monosodium Glutamate (MSG), Hydrolised Vegetable Protein (HVP), animal by-products.
FREE from Synthetically Produced Substances, Genetically Modified Organisms (GMO) and Genetic Engineering (GE)
I guess this is good if you're a fan of decaf.