It's taken me all day to remember, but I've taken them now.
Hopefully my new vitamins and minerals will turn up tomorrow... I'm guessing that they counted Monday as the dispatch day because that was the first working day after I'd ordered it, so it'll be three days tomorrow, just need to be sure of which speed I chose when I ordered them... I'm pretty sure it was the 2-3 working days which means that it'll be here with the post tomorrow but if it's 5 working days, it'll be Monday! lol