diff --git a/Elwig/Helpers/Billing/BillingData.cs b/Elwig/Helpers/Billing/BillingData.cs
index f5ea89b..80c83d5 100644
--- a/Elwig/Helpers/Billing/BillingData.cs
+++ b/Elwig/Helpers/Billing/BillingData.cs
@@ -145,5 +145,36 @@ namespace Elwig.Helpers.Billing {
             }
             return dict;
         }
+
+        protected static Dictionary<string, JsonValue> GetSelection(JsonObject data, IEnumerable<string> attributeVariants) {
+            Dictionary<string, JsonValue> dict;
+            if (data["default"] is JsonValue def) {
+                dict = attributeVariants.ToDictionary(e => e, _ => def);
+            } else {
+                dict = [];
+            }
+
+            var variants = data.Where(p => !p.Key.StartsWith('/') && p.Key.Length == 2);
+            var attributes = data.Where(p => p.Key.StartsWith('/'));
+            var others = data.Where(p => !p.Key.StartsWith('/') && p.Key.Length > 2 && p.Key != "default");
+            foreach (var (idx, v) in variants) {
+                var curve = v?.AsValue() ?? throw new InvalidOperationException();
+                foreach (var i in attributeVariants.Where(e => e.StartsWith(idx[..^1]))) {
+                    dict[i] = curve;
+                }
+            }
+            foreach (var (idx, v) in attributes) {
+                var curve = v?.AsValue() ?? throw new InvalidOperationException();
+                foreach (var i in attributeVariants.Where(e => e[2..] == idx[1..])) {
+                    dict[i] = curve;
+                }
+            }
+            foreach (var (idx, v) in others) {
+                var curve = v?.AsValue() ?? throw new InvalidOperationException();
+                dict[idx.Replace("/", "")] = curve;
+            }
+
+            return dict;
+        }
     }
 }
diff --git a/Elwig/Helpers/Billing/PaymentBillingData.cs b/Elwig/Helpers/Billing/PaymentBillingData.cs
index bf45ef1..ec80cbd 100644
--- a/Elwig/Helpers/Billing/PaymentBillingData.cs
+++ b/Elwig/Helpers/Billing/PaymentBillingData.cs
@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Globalization;
 using System.Linq;
 using System.Text.Json.Nodes;
 
@@ -27,35 +26,7 @@ namespace Elwig.Helpers.Billing {
         }
 
         private Dictionary<string, Curve> GetData(JsonObject data) {
-            Dictionary<string, Curve> dict;
-            if (data["default"] is JsonValue def) {
-                var c = LookupCurve(def);
-                dict = AttributeVariants.ToDictionary(e => e, _ => c);
-            } else {
-                dict = [];
-            }
-
-            var variants = data.Where(p => !p.Key.StartsWith('/') && p.Key.Length == 2);
-            var attributes = data.Where(p => p.Key.StartsWith('/'));
-            var others = data.Where(p => !p.Key.StartsWith('/') && p.Key.Length > 2);
-            foreach (var (idx, v) in variants) {
-                var curve = LookupCurve(v?.AsValue() ?? throw new InvalidOperationException());
-                foreach (var i in AttributeVariants.Where(e => e.StartsWith(idx[..^1]))) {
-                    dict[i] = curve;
-                }
-            }
-            foreach (var (idx, v) in attributes) {
-                var curve = LookupCurve(v?.AsValue() ?? throw new InvalidOperationException());
-                foreach (var i in AttributeVariants.Where(e => e[2..] == idx[1..])) {
-                    dict[i] = curve;
-                }
-            }
-            foreach (var (idx, v) in others) {
-                var curve = LookupCurve(v?.AsValue() ?? throw new InvalidOperationException());
-                dict[idx.Replace("/", "")] = curve;
-            }
-
-            return dict;
+            return GetSelection(data, AttributeVariants).ToDictionary(e => e.Key, e => LookupCurve(e.Value));
         }
 
         protected Dictionary<string, Curve> GetPaymentData() {