The court may, at any time after making a winding-up order, make an order on any contributory for the time being on the list of contributories to pay, in manner directed by the order, any money due from him (or from the estate of the person who he represents) to the company, exclusive of any money payable by him or the estate by virtue of any call . . . .
The court in making such an order may—
in the case of an unlimited company, allow to the contributory by way of set-off any money due to him or the estate which he represents from the company on any independent dealing or contract with the company, but not any money due to him as a member of the company in respect of any dividend or profit, and
in the case of a limited company, make to any director or manager whose liability is unlimited or to his estate the like allowance.
In the case of any company, whether limited or unlimited, when all the creditors are paid in full (together with interest at the official rate) any money due on any account whatever to a contributory from the company may be allowed to him by way of set-off against any subsequent call.