Any person who contravenes or fails to comply with this provision shall be guilty of an offence and liable, on conviction, to a fine not exceeding R1 000 or to imprisonment for a period not exceeding six months and, in the case of a continuous offence, to an additional fine of R5 for each day on which the offence continues or to additional imprisonment of one day for each day on which the offence continues:
Provided that the period of such additional imprisonment shall in no case exceed 90 days