King Charles has been told to “never give up” by the public, as the monarch has received a whopping 7,000 messages of support. Among these was a well-wisher’s card showed a disgruntled dog recovering from medical treatment. The dog was depicted telling the King: “At least you don’t have to wear a cone!” King Charles, 75, was photographed looking through some of the 7,000 messages of support Buckingham Palace’s correspondence team received from around the world since his cancer diagnosis was announced. Many shared their own experiences of cancer or offered their good wishes and advice for a spe…