Update validation message: old persons shared ownership

app/models/form/sales/pages/old_persons_shared_ownership_value_check.rb

@@ -7,10 +7,13 @@ class Form::Sales::Pages::OldPersonsSharedOwnershipValueCheck < ::Form::Page
       },
     ]
     @title_text = {
-      "translation" => "soft_validations.old_persons_shared_ownership",
+      "translation" => "soft_validations.old_persons_shared_ownership.title_text",
+      "arguments" => [],
+    }
+    @informative_text = {
+      "translation" => "soft_validations.old_persons_shared_ownership.hint_text",
       "arguments" => [],
     }
-    @informative_text = {}
   end
 
   def questions

config/locales/en.yml

@@ -557,7 +557,9 @@ en:
       hint_text: "This is higher than we would expect."
     shared_ownership_deposit:
       title_text: "Mortgage, deposit and cash discount total should equal %{expected_shared_ownership_deposit_value}"
-    old_persons_shared_ownership: "At least one buyer should be aged over 64 for Older persons’ shared ownership scheme"
+    old_persons_shared_ownership: 
+      title_text: "You told us the buyer is using the Older Persons Shared Ownership scheme."
+      hint_text: "At least one buyer must be aged 65 years and over to use this scheme."
     staircase_bought_seems_high: 
       title_text: "You told us that %{percentage}% was bought in this staircasing transaction."
       hint_text: "Most staircasing transactions are less than 50%"

spec/models/form/sales/pages/old_persons_shared_ownership_value_check_spec.rb

@@ -33,13 +33,13 @@ RSpec.describe Form::Sales::Pages::OldPersonsSharedOwnershipValueCheck, type: :m
 
   it "has the correct title_text" do
     expect(page.title_text).to eq({
-      "translation" => "soft_validations.old_persons_shared_ownership",
+      "translation" => "soft_validations.old_persons_shared_ownership.title_text",
       "arguments" => [],
     })
   end
 
   it "has the correct informative_text" do
-    expect(page.informative_text).to eq({})
+    expect(page.informative_text).to eq({ "arguments" => [], "translation" => "soft_validations.old_persons_shared_ownership.hint_text" })
   end
 
   it "has the correct interruption_screen_question_ids" do