diff --git a/AppWithAuthentication/OnlineShop/OnlineShop.ApiService/Program.cs b/AppWithAuthentication/OnlineShop/OnlineShop.ApiService/Program.cs
index 3e9263f..754eb74 100644
--- a/AppWithAuthentication/OnlineShop/OnlineShop.ApiService/Program.cs
+++ b/AppWithAuthentication/OnlineShop/OnlineShop.ApiService/Program.cs
@@ -235,7 +235,7 @@ using (var scope = app.Services.CreateScope())
                 reviews.Add(new ProductReview
                 {
                     UserId = $"user-{Random.Shared.Next(1, 100)}",
-                    Rating = Random.Shared.Next(3, 6), // 3–5
+                    Rating = Random.Shared.Next(3, 6), // 3�5
                     Comment = "Great product, works exactly as expected.",
                     CreatedAt = DateTime.UtcNow.AddDays(-Random.Shared.Next(1, 30)),
                     VerifiedPurchase = Random.Shared.Next(0, 2) == 1,
@@ -595,8 +595,7 @@ app.MapPost("/api/orders", async (
 
     var message = JsonSerializer.Serialize(new { orderId });
 
-    queueClient.SendMessage(
-       JsonSerializer.Serialize(message));
+    queueClient.SendMessage(message);
 
     return Results.Created($"/api/orders/{orderId}", new
     {
diff --git a/AppWithAzureQueueStorage/OnlineShop/OnlineShop.ApiService/Program.cs b/AppWithAzureQueueStorage/OnlineShop/OnlineShop.ApiService/Program.cs
index ffb1f5c..29f2350 100644
--- a/AppWithAzureQueueStorage/OnlineShop/OnlineShop.ApiService/Program.cs
+++ b/AppWithAzureQueueStorage/OnlineShop/OnlineShop.ApiService/Program.cs
@@ -230,7 +230,7 @@ using (var scope = app.Services.CreateScope())
                 reviews.Add(new ProductReview
                 {
                     UserId = $"user-{Random.Shared.Next(1, 100)}",
-                    Rating = Random.Shared.Next(3, 6), // 3–5
+                    Rating = Random.Shared.Next(3, 6), // 3�5
                     Comment = "Great product, works exactly as expected.",
                     CreatedAt = DateTime.UtcNow.AddDays(-Random.Shared.Next(1, 30)),
                     VerifiedPurchase = Random.Shared.Next(0, 2) == 1,
@@ -538,8 +538,7 @@ app.MapPost("/api/orders", async (
 
     var message = JsonSerializer.Serialize(new { orderId });
 
-    queueClient.SendMessage(
-       JsonSerializer.Serialize(message));
+    queueClient.SendMessage(message);
 
     return Results.Created($"/api/orders/{orderId}", new
     {
diff --git a/AppWithRedisCacheAndLock/OnlineShop/OnlineShop.ApiService/Program.cs b/AppWithRedisCacheAndLock/OnlineShop/OnlineShop.ApiService/Program.cs
index 38ef590..a7a1714 100644
--- a/AppWithRedisCacheAndLock/OnlineShop/OnlineShop.ApiService/Program.cs
+++ b/AppWithRedisCacheAndLock/OnlineShop/OnlineShop.ApiService/Program.cs
@@ -233,7 +233,7 @@ using (var scope = app.Services.CreateScope())
                 reviews.Add(new ProductReview
                 {
                     UserId = $"user-{Random.Shared.Next(1, 100)}",
-                    Rating = Random.Shared.Next(3, 6), // 3–5
+                    Rating = Random.Shared.Next(3, 6), // 3�5
                     Comment = "Great product, works exactly as expected.",
                     CreatedAt = DateTime.UtcNow.AddDays(-Random.Shared.Next(1, 30)),
                     VerifiedPurchase = Random.Shared.Next(0, 2) == 1,
@@ -590,8 +590,7 @@ app.MapPost("/api/orders", async (
 
     var message = JsonSerializer.Serialize(new { orderId });
 
-    queueClient.SendMessage(
-       JsonSerializer.Serialize(message));
+    queueClient.SendMessage(message);
 
     return Results.Created($"/api/orders/{orderId}", new
     {