diff --git a/spec/factories/neighbour.rb b/spec/factories/neighbour.rb
index 32ad0a502a..e7d7cdf4c2 100644
--- a/spec/factories/neighbour.rb
+++ b/spec/factories/neighbour.rb
@@ -2,7 +2,7 @@
 
 FactoryBot.define do
   factory :neighbour do
-    address { "123, Made Up Street, London, W5 67S" }
+    address { Faker::Address.full_address }
     consultation
   end
 end
diff --git a/spec/services/letter_sending_service_spec.rb b/spec/services/letter_sending_service_spec.rb
index a582beebce..10e39f5e4e 100644
--- a/spec/services/letter_sending_service_spec.rb
+++ b/spec/services/letter_sending_service_spec.rb
@@ -110,4 +110,33 @@
       end
     end
   end
+
+  describe "#deliver_batch!" do
+    let(:user) { create(:user) }
+
+    before do
+      allow(ENV).to receive(:fetch).and_call_original
+      allow(ENV).to receive(:fetch).with("BOPS_ENVIRONMENT", "development").and_return("production")
+    end
+    let(:consultation) { planning_application.consultation }
+    let(:neighbours) { create_list(:neighbour, 3, consultation:) }
+    let(:status) { 200 }
+
+    before do
+      travel_to(Time.utc(2023, 1, 5, 5))
+    end
+
+    it "makes requests and records in the model" do
+      letter_content = "Application received: #{planning_application.received_at.to_fs(:day_month_year_slashes)}"
+      notify_request = stub_send_letter(status: 200)
+
+      described_class.new(letter_content, letter_type: :consultation).deliver_batch!(neighbours)
+
+      expect(notify_request).to have_been_requested.times(3)
+
+      expect(consultation.neighbour_letter_batches.count).to eq(1)
+
+      expect(consultation.neighbour_letter_batches.first.neighbour_letters.count).to eq(3)
+    end
+  end
 end
diff --git a/spec/system/planning_applications/consulting/send_letters_to_neighbours_spec.rb b/spec/system/planning_applications/consulting/send_letters_to_neighbours_spec.rb
index 2f855c46cc..a3303bcfec 100644
--- a/spec/system/planning_applications/consulting/send_letters_to_neighbours_spec.rb
+++ b/spec/system/planning_applications/consulting/send_letters_to_neighbours_spec.rb
@@ -41,7 +41,7 @@
       sign_in assessor
       visit "/planning_applications/#{planning_application.reference}"
 
-      neighbour = create(:neighbour, consultation:)
+      neighbour = create(:neighbour, consultation:, address: "123, Made Up Street, London, W5 67S")
       neighbour_letter = create(:neighbour_letter, neighbour:, status: "submitted", notify_id: "123")
 
       stub_send_letter(status: 200)