Times and intervals of payments under allotment notes
5.  Unless the seaman’s employer or the master otherwise agrees —
(a)the first sum payable under an allotment note shall be payable not less than one month from the date on which the allotment note is issued and subsequent sums shall become payable at regular intervals of not less than one month reckoned from the date when the first sum is payable; and
(b)no sum shall be payable under an allotment note before the seaman has earned any of the wages alloted by it.