diff --git a/make_post_sell/models/crypto_payment.py b/make_post_sell/models/crypto_payment.py
index 43be60a..9d91eb3 100644
--- a/make_post_sell/models/crypto_payment.py
+++ b/make_post_sell/models/crypto_payment.py
@@ -559,10 +559,13 @@ class CryptoPayment(RBase, Base):
 
         # Get user display name if available
         user_display = ""
-        if self.user and hasattr(self.user, "display_name") and self.user.display_name:
-            user_display = f" user:{self.user.display_name}"
-        elif self.user and hasattr(self.user, "username") and self.user.username:
-            user_display = f" user:{self.user.username}"
+        if self.user:
+            if hasattr(self.user, "name") and self.user.name:
+                user_display = f" user:{self.user.name}"
+            else:
+                user_display = f" user:id-{self.user.uuid_str[:8]}"
+        elif self.user_id:
+            user_display = f" user:id-{self.user_id.hex[:8]}"
 
         # Get shop name if available
         shop_display = ""