I have some furniture for sale on Gumtree. Someone messaged me yesterday and asked what my best price was and I replied politely to say that the price I was asking was my best price and asked if they wanted to buy the furniture. In the early hours of this morning I got another email from them. I have attached a screenshot. I haven't clicked on the link to the picture. What do you think they might have sent me? I have never seen a message like this before.