If the lessor requires the tenant to pay a bond—
(a) the bond must be held by the lessor in trust for the tenant in an account that attracts interest; and
(b) the lessor must account to the tenant for interest earned on the bond, but the lessor is entitled to keep the interest and deal with it as an amount paid by the tenant to the lessor as part of the bond; and
(c) the lessor may only use the bond money in accordance with section 43.