Find Phone number, Location Address and all other information of Western Union Agents in Karachi Site No 5 Karachi on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-21-32550307, or you can visit their location in person, address location is: Plot B/9-b-1, Site, Karachi. Plot Pp-4 Block 7 And 8 Kchs Karachi.