‹ 18.7.8 Transactions with Issuers 18.7.10 Taking of Orders by Customers › 18.7.9 Due Authorisation for Option Transactions No Option transactions shall be effected on behalf of customers without proper authorisation being given by the customers. ‹ 18.7.8 Transactions with Issuers 18.7.10 Taking of Orders by Customers ›