(6B) If any citizen or permanent resident of Singapore, other than an individual under subsection (5), upon the expiry of the period in respect of which he has paid an entry levy specified in subsection (1)(a) or (b) —
(a) remains on the casino premises for any further period thereafter (referred to in this section as the over-stay period); and
(b) fails to pay the entry levy required under subsection (1) in respect of the over-stay period before he leaves the casino premises,
he shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $1,000, and shall also be liable for the amount of the entry levy specified in subsection (1)(a) in respect of the over-stay period.