Complaint / Committee declined to take further action on complaint / responsibility for invoices regarding mortgage defaults / complaint lawyer falsely asserted complainant was in default of mortgage, and issued two invoices complainant was not responsible for / Lawyers and Conveyancers Act 2006, section 12(a) / HELD / lawyer relied on client’s advice as to the facts when issuing one erroneous invoice / mistake quickly acknowledged, isolated error / no breach of section 12(a) / liability for other invoice currently before the courts / no evidence of breach of professional standards / Committee’s decision confirmed / section 211(1)(a)