21.— (1) An owners’ management company may issue a single request for payment of the aggregate of the charges arising under section 18 and the contributions fixed under section 19, and every request for payment, whether in reliance on this section or on section 18, 19, or 20 shall set out the basis of the calculation of the charge and contribution, a breakdown of how it is calculated and the amount payable in respect of the unit concerned.

(2) Where payment of charges under section 18 and contributions under section 19 or 20 are requested or collected together such charges and contributions may collectively be referred to as “owners’ management company annual charges”.