broken rake file

gistfile1.txt

namespace :website do
  desc "Remove test users from intercom"
  task :remove_test_users_from_intercom => :environment do
    Intercom.app_id = ENV["INTERCOM_APP_ID"]
    Intercom.api_key = ENV["INTERCOM_APP_KEY"]

    test_email_accounts = ['sharklasers.com', 'blah.com']
    puts "Starting Job"
#    Account.all.each do |user|
    Intercom::User.all.each do |user|
      test_email_accounts.each do |test_addresses|
        if user.email.include?(test_addresses)
          puts user.email, user.id
#          user = Intercom::User.delete(:email => user.email, :user_id => user.id)     
          break
        end
      end
    end
      puts "Finished running rake"
  end
end

$ rake website:remove_test_users_from_intercom
rake aborted!
uninitialized constant Intercom
~/website/lib/tasks/delete-test-users-intercom.rake:7:in `block (2 levels) in <top (required)>'
Tasks: TOP => website:remove_test_users_from_intercom
(See full trace by running task with --trace)