I put in a slightly "below asking price" offer on a house with KFH, which was immediately accepted. It was agreed that the house would be taken off the market immediately. We proceeded to arrange a survey etc.
However, a few days later the agent I was dealing with mistakenly left a voicemail on my husband's mobile phone, thinking it was the Seller, saying that despite agreeing to take the house off the market, the agent had arranged a number of second viewings a few days later in an attempt to get an asking price offer.
I called KFH, asking them to confirm the house was off the market, as a sale was proceeding. They confirmed it was, which was clearly a lie. I then confronted them with the voicemail message and the scheduled second viewings.
Very embarrassing for them. A clear breach of the Estate Agent's Code of Ethics.... After that, we got a very good service from them as we proceeded to buy the house. But, a clear lesson in never believing anything an Estate Agent tells you.