er, yes my Lord, there's the prior point that we er, we would submit as indicated in the skeleton of the eleventh of November that on its true construction, erm the central fund byelaw, article ten in particular er gives rise to a payment of a specified sum, ascertain sum, payable forthwith on demand, it's rather like the example your Lordship gave of the Barclaycard or the cheque, if my learned friend is right