diff --git a/app/services/bulk_upload/sales/year2024/row_parser.rb b/app/services/bulk_upload/sales/year2024/row_parser.rb
index 682464331..ab2819389 100644
--- a/app/services/bulk_upload/sales/year2024/row_parser.rb
+++ b/app/services/bulk_upload/sales/year2024/row_parser.rb
@@ -451,6 +451,7 @@ class BulkUpload::Sales::Year2024::RowParser
 
   validate :validate_buyer1_economic_status, on: :before_log
   validate :validate_address_option_found, on: :after_log
+  validate :validate_mortgageused, on: :before_log
   validate :validate_nulls, on: :after_log
   validate :validate_valid_radio_option, on: :before_log
 
@@ -1377,4 +1378,10 @@ private
   def valid_nationality_options
     %w[0] + GlobalConstants::COUNTRIES_ANSWER_OPTIONS.keys # 0 is "Prefers not to say"
   end
+
+  def validate_mortgageused
+    if discounted_ownership? && mortgageused.present? && mortgageused.to_i != 1 && mortgageused.to_i != 2
+      errors.add(:field_117, I18n.t("validations.invalid_option", question: "Was a mortgage used for the purchase of this property? - Discounted ownership"))
+    end
+  end
 end
diff --git a/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb b/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb
index df6ed7764..73d804689 100644
--- a/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb
+++ b/spec/services/bulk_upload/sales/year2024/row_parser_spec.rb
@@ -1017,14 +1017,6 @@ RSpec.describe BulkUpload::Sales::Year2024::RowParser do
         end
       end
 
-      context "when it's not shared ownership" do
-        let(:attributes) { setup_section_params.merge(field_8: "2", field_103: "3", field_86: "1", field_87: "50", field_88: "99", field_109: nil) }
-
-        it "does not add errors" do
-          expect(parser.errors[:field_103]).not_to include("Enter a valid value for Was a mortgage used for the purchase of this property? - Shared ownership")
-        end
-      end
-
       context "when value is 3 and stairowned is 100" do
         let(:attributes) { setup_section_params.merge(field_103: "3", field_86: "1", field_87: "50", field_88: "100", field_109: nil) }
 
@@ -1039,6 +1031,14 @@ RSpec.describe BulkUpload::Sales::Year2024::RowParser do
     end
 
     describe "#field_117" do
+      let(:attributes) { valid_attributes.merge({ field_8: "2", field_117: "3" }) }
+
+      it "does not allow 3 (don't know) as an option for discounted ownership" do
+        expect(parser.errors[:field_117]).to include("Enter a valid value for Was a mortgage used for the purchase of this property? - Discounted ownership")
+        expect(parser.errors[:field_103]).to be_empty
+        expect(parser.errors[:field_126]).to be_empty
+      end
+
       context "when validate_discounted_ownership_value is triggered" do
         let(:attributes) { setup_section_params.merge(field_114: 100, field_123: 100, field_8: 2, field_10: 9, field_117: 2, field_116: 10) }
 
@@ -1050,6 +1050,16 @@ RSpec.describe BulkUpload::Sales::Year2024::RowParser do
       end
     end
 
+    describe "#field_126" do
+      let(:attributes) { valid_attributes.merge({ field_8: "3", field_126: "3" }) }
+
+      it "allows 3 (don't know) as an option for outright sale" do
+        expect(parser.errors[:field_126]).to be_empty
+        expect(parser.errors[:field_103]).to be_empty
+        expect(parser.errors[:field_117]).to be_empty
+      end
+    end
+
     describe "soft validations" do
       context "when soft validation is triggered" do
         let(:attributes) { valid_attributes.merge({ field_31: 22, field_35: 5 }) }
@@ -1061,7 +1071,7 @@ RSpec.describe BulkUpload::Sales::Year2024::RowParser do
 
         it "populates with correct error message" do
           expect(parser.errors.where(:field_31, category: :soft_validation).first.message).to eql("You told us this person is aged 22 years and retired.")
-          expect(parser.errors.where(:field_31, category: :soft_validation).first.message).to eql("You told us this person is aged 22 years and retired.")
+          expect(parser.errors.where(:field_35, category: :soft_validation).first.message).to eql("You told us this person is aged 22 years and retired.")
         end
       end
     end