за вознаграждение и за счёт(which one party (freight forwarder) agrees for a fee and for the account of another party (the client) to perform or arrange for the performance .. Alexander Demidov)
от имени и за счёт(on behalf of and at the hazard of – used by a stock-exchange broker to indicate that he is solely an agent in buying or selling for a customer. WTNI Alexander Demidov)