diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04d87d1..bf42f9a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Fixed
+- Accept two digit country codes
+
 ## [1.22.0] - 2024-06-03
 
 ### Fixed
diff --git a/dotnet/Services/CybersourcePaymentService.cs b/dotnet/Services/CybersourcePaymentService.cs
index 3a0194f..39c1f88 100644
--- a/dotnet/Services/CybersourcePaymentService.cs
+++ b/dotnet/Services/CybersourcePaymentService.cs
@@ -2259,7 +2259,14 @@ public string GetCountryCode(string country)
             string retval = string.Empty;
             if (!string.IsNullOrEmpty(country))
             {
-                retval = CybersourceConstants.CountryCodesMapping[country];
+                if (country.Length == 2)
+                {
+                    retval = country;
+                }
+                else if (country.Length == 3)
+                {
+                    retval = CybersourceConstants.CountryCodesMapping[country];
+                }
             }
 
             return retval;