diff --git a/core/models.py b/core/models.py
index 8924c846..9817d7a3 100644
--- a/core/models.py
+++ b/core/models.py
@@ -1794,7 +1794,7 @@ class OrderProduct(ExportModelOperationsMixin("order_product"), NiceModel):  # t
 
         if action == "add":
             if not feedback_exists:
-                if self.order.status not in ["MOMENTAL", "PENDING", "FAILED"]:
+                if self.order.status == "FINISHED":
                     return Feedback.objects.create(rating=rating, comment=comment, order_product=self)
                 else:
                     raise ValueError(_("you cannot feedback an order which is not received"))
diff --git a/payments/models.py b/payments/models.py
index 6678715b..38b4cb16 100644
--- a/payments/models.py
+++ b/payments/models.py
@@ -22,7 +22,8 @@ class Transaction(NiceModel):
     process = JSONField(verbose_name=_("processing details"), default=dict)
 
     def __str__(self):
-        return f"{self.balance.user.email} | {self.amount}"
+        return f"{self.balance.user.email} | {self.amount}" if self.balance else\
+         f"{self.order.attributes.get("customer_email")} | {self.amount}"
 
     def save(self, **kwargs):
         if self.amount != 0.0 and (