A building services provider may provide professional advice on issues of a technical or specialised nature in respect of work without being engaged as a building surveyor for the work if –

(a) he or she has not been engaged at any time, by the person seeking the advice, to perform the functions of a building surveyor under this Act in respect of the work; and

(b) another person is to be, or has been, engaged to perform the functions of a building surveyor under this Act in respect of the work.