The Mailroom is where bounties are
When a target is selected for assassination, the mailroom is called using a verification number. The mailroom is filled with women at desks with computers and typewriters. The women verify the assassination and create the contract for the hit, it his hand typed on a type writer and contains the information on who is being targeted, how much money is being offered and who is able to collect on the target. Once the contract is finished another woman collects it and sends in through a pneumatic mail shoot and enters the contract into the database sending text messages to all assassins eligible to collect on the hit.
The mailroom also contains files on each assassin that is under the employ of the high table.