So I went along to Betfair Sportsbook and tried to have £600 on under 21.5 and also the same amount on under 11.5 for Kings XI as I think he's a sharp judge.
They offered me £2 maximum on each.
Now I don't mind that they won't take my bet, but I do object to them advertising that price.
Change the price and put a real market up that you're happy with.