Calls on shares
17.—(1) The directors may from time to time make calls upon the members in respect of any money unpaid on their shares, other than in accordance with the conditions of the allotment of the shares, if both of the following conditions are met:
(a) no call is payable at less than one month after the date fixed for the payment of the last preceding call;
(b) at least 14 days’ notice specifying the time or times and the place of payment is given by the company to the members.
(2) Each member must pay to the company at the time or times and place specified in the notice referred to in paragraph (1)(b) the amount called on the member’s shares.
(3) The directors may revoke or postpone a call.
18.—(1) A call is treated as having been made at the time when the resolution of the directors authorising the call was passed.
(2) A call may be required to be paid by instalments.