Here is the link to the City of Vancouver online staff directory, Quickfind.
http://app.vancouver.ca/qf_net/Default.aspx
To find staff, citizens can also use the organization chart if they don’t know the name of a specific person.
http://vancouver.ca/your-government/organizational-structure.aspx
CityHallWatch: Tools to engage in Vancouver city decisions 
Someone left a mattress in the alley blocking traffic at the back of Lululemon west 4th and its in the back
Thanks, Colleen. The best thing would be for you to call 311 and report it to the City staff.