written authority meaning in English

书面援权证明

You do not have my / our written authority under section 7 ( 2 ) of the securities and futures ( client securities ) rules ( cap . 571 sub . leg . ) to apply any of my / our securities in question pursuant to a securities borrowing and lending agreement
本人/吾等并无根据《证券及期货(客户证券)规则》 (第571章附属条例)第7 ( 2 )条以书面授权阁下根据证券借贷协议运用任可有关本人/吾等的证券。