Manner of paying contributions
4.  All contributions to the Fund may be paid —
(a)in cash at the Board’s office;
(b)in cash at any post office in Singapore duly authorised to receive money on behalf of the Board;
(c)by money order, postal order or cheque drawn on any bank in Singapore delivered or sent by post to the Board’s office; or
(d)in such other manner as the Board may from time to time authorise in any particular case or class of cases.