I'm used to the people who email me during the day and then if they don't get a response within 20 minutes, email me again to ask if I got their email - I don't think anyone should expect instant responses but fair enough, maybe it's not clear that I work on my own and don't have admin staff. However, honestly, if you send me a fb message at 9:45 on a Sunday night to ask about my pricing, don't you think it just might be the next morning before you get a response? Is it really helpful to send another message at 11:15 saying, "!?x" ?