I find that odd. I've always responded quickly myself.
House was new to the market on 27 November. I spotted it immediately as registered with the agent and so got an email. I rang and was first to view it same day, another viewing straight after mine. Later in the afternoon I rang up and made an offer about 8% below the offers in region of price. I am a cash buyer. Agent said people who viewed after us were much less keen than we were and weren't interested because it was too much of a project. Agent also said they had 4 viewings booked in for the next day but weren't booking any more viewings after that.
It is a probate sale fixer upper.
I got a confirmation email with the official offer letter attached from the agent and since then nothing? Isn't that a bit off?