diff --git a/app/models/service.py b/app/models/service.py
index 2931b0de8..6e3bb9794 100644
--- a/app/models/service.py
+++ b/app/models/service.py
@@ -50,9 +50,6 @@ class Service():
     def update(self, **kwargs):
         return service_api_client.update_service(self.id, **kwargs)
 
-    def update_with_properties(self, properties):
-        return service_api_client.update_service_with_properties(self.id, properties)
-
     def switch_permission(self, permission):
         return self.force_permission(
             permission,
@@ -68,12 +65,10 @@ class Service():
         )
 
     def update_permissions(self, permissions):
-        return self.update_with_properties({'permissions': list(permissions)})
+        return self.update(permissions=list(permissions))
 
     def toggle_research_mode(self):
-        self.update_with_properties({
-            'research_mode': not self.research_mode,
-        })
+        self.update(research_mode=not self.research_mode)
 
     @property
     def trial_mode(self):
diff --git a/tests/app/main/views/service_settings/test_inbound_sms_setting.py b/tests/app/main/views/service_settings/test_inbound_sms_setting.py
index dfbb7abfd..8114c4faf 100644
--- a/tests/app/main/views/service_settings/test_inbound_sms_setting.py
+++ b/tests/app/main/views/service_settings/test_inbound_sms_setting.py
@@ -12,7 +12,7 @@ def test_set_inbound_sms_sets_a_number_for_service(
     mock_no_inbound_number_for_service,
     mocker
 ):
-    mocker.patch('app.service_api_client.update_service_with_properties')
+    mocker.patch('app.service_api_client.update_service')
     data = {
         "inbound_number": "781d9c60-7a7e-46b7-9896-7b045b992fa5",
     }
diff --git a/tests/app/main/views/test_service_settings.py b/tests/app/main/views/test_service_settings.py
index 7a33f4d6d..cb45e6ef0 100644
--- a/tests/app/main/views/test_service_settings.py
+++ b/tests/app/main/views/test_service_settings.py
@@ -1933,7 +1933,7 @@ def test_switch_service_from_research_mode_to_normal(
         research_mode=True
     )
     mocker.patch('app.service_api_client.get_service', return_value={"data": service})
-    update_service_mock = mocker.patch('app.service_api_client.update_service_with_properties', return_value=service)
+    update_service_mock = mocker.patch('app.service_api_client.update_service', return_value=service)
 
     response = logged_in_platform_admin_client.get(
         url_for('main.service_switch_research_mode', service_id=service['id'])
@@ -1941,7 +1941,7 @@ def test_switch_service_from_research_mode_to_normal(
     assert response.status_code == 302
     assert response.location == url_for('main.service_settings', service_id=service['id'], _external=True)
     update_service_mock.assert_called_with(
-        service['id'], {"research_mode": False}
+        service['id'], research_mode=False
     )
 
 
@@ -1956,7 +1956,7 @@ def test_shows_research_mode_indicator(
     mock_get_service_settings_page_common,
 ):
     service_one['research_mode'] = True
-    mocker.patch('app.service_api_client.update_service_with_properties', return_value=service_one)
+    mocker.patch('app.service_api_client.update_service', return_value=service_one)
 
     response = logged_in_client.get(url_for('main.service_settings', service_id=service_one['id']))
     assert response.status_code == 200
@@ -2444,7 +2444,7 @@ def test_switch_service_enable_letters(
     initial_permissions,
     expected_updated_permissions,
 ):
-    mocked_fn = mocker.patch('app.service_api_client.update_service_with_properties', return_value=service_one)
+    mocked_fn = mocker.patch('app.service_api_client.update_service', return_value=service_one)
     service_one['permissions'] = initial_permissions
 
     page = client_request.get(
@@ -2465,8 +2465,7 @@ def test_switch_service_enable_letters(
             _external=True
         )
     )
-
-    assert set(mocked_fn.call_args[0][1]['permissions']) == set(expected_updated_permissions)
+    assert set(mocked_fn.call_args[1]['permissions']) == set(expected_updated_permissions)
     assert mocked_fn.call_args[0][0] == service_one['id']
 
 
@@ -2505,7 +2504,7 @@ def test_switch_service_enable_international_sms(
     post_value,
     international_sms_permission_expected_in_api_call,
 ):
-    mocked_fn = mocker.patch('app.service_api_client.update_service_with_properties', return_value=service_one)
+    mocked_fn = mocker.patch('app.service_api_client.update_service', return_value=service_one)
     client_request.post(
         'main.service_set_international_sms',
         service_id=service_one['id'],
@@ -2516,9 +2515,9 @@ def test_switch_service_enable_international_sms(
     )
 
     if international_sms_permission_expected_in_api_call:
-        assert 'international_sms' in mocked_fn.call_args[0][1]['permissions']
+        assert 'international_sms' in mocked_fn.call_args[1]['permissions']
     else:
-        assert 'international_sms' not in mocked_fn.call_args[0][1]['permissions']
+        assert 'international_sms' not in mocked_fn.call_args[1]['permissions']
 
     assert mocked_fn.call_args[0][0] == service_one['id']