diff --git a/applications/Unity.GrantManager/modules/Unity.Payments/src/Unity.Payments.Application/Integrations/Cas/InvoiceService.cs b/applications/Unity.GrantManager/modules/Unity.Payments/src/Unity.Payments.Application/Integrations/Cas/InvoiceService.cs
index 5f5235a057..9cd659d376 100644
--- a/applications/Unity.GrantManager/modules/Unity.Payments/src/Unity.Payments.Application/Integrations/Cas/InvoiceService.cs
+++ b/applications/Unity.GrantManager/modules/Unity.Payments/src/Unity.Payments.Application/Integrations/Cas/InvoiceService.cs
@@ -3,7 +3,10 @@
 using System.Threading.Tasks;
 using System.Text.Json;
 using System;
+using System.Globalization;
+using System.Text.RegularExpressions;
 using Unity.Payments.Integrations.Http;
+using System.Text.Encodings.Web;
 using Volo.Abp.Application.Services;
 using System.Collections.Generic;
 using Unity.Payments.Enums;
@@ -197,7 +200,7 @@ await AbpUserTenantAccessor.GetCurrentTenantNameAsync(serviceProvider)
 
             var generated = string.IsNullOrWhiteSpace(tenantDesc)
                 ? "Grant Payment"
-                : $"{tenantDesc} – Grant Payment";
+                : $"{tenantDesc} - Grant Payment";
 
             if (generated.Length > 50)
             {
@@ -248,9 +251,13 @@ await invoiceManager.UpdatePaymentRequestWithInvoiceAsync(
 
         public async Task<InvoiceResponse> CreateInvoiceAsync(Invoice casAPInvoice)
         {
-            string jsonString = JsonSerializer.Serialize(casAPInvoice);
+            var jsonOptions = new JsonSerializerOptions
+            {
+                Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping
+            };
+
+            string jsonString = JsonSerializer.Serialize(casAPInvoice, jsonOptions);
 
-            Logger.LogDebug("CAS Invoice JSON: {CasInvoiceJson}", jsonString);
 
             var authToken = await iTokenService.GetAuthTokenAsync(CurrentTenant.Id ?? Guid.Empty);
             string casBaseUrl = await endpointManagementAppService.GetUgmUrlByKeyNameAsync(DynamicUrlKeyNames.PAYMENT_API_BASE);