diff --git a/finance/models.py b/finance/models.py
index baf8d70..f1c972f 100755
--- a/finance/models.py
+++ b/finance/models.py
@@ -27,7 +27,7 @@ class Bill(models.Model):
     def __str__(self):
         return '%s: %s' % (self.id, self.user)
 
-    def freeze_course(self, user):
+    def freeze_course(self):
         if self.invoice_set.exclude(status='F').exists():
             log = False
             try:
@@ -40,7 +40,7 @@ class Bill(models.Model):
             if log:
                 logger_business_rules.info('Отказ от платежей прошёл успешно', exc_info=True, extra={
                     'description': 'The privileges were not taken away, as they were not granted',
-                    'user': user,
+                    'user': self.user,
                 })
 
             self.freeze = True
@@ -49,7 +49,7 @@ class Bill(models.Model):
         else:
             logger_business_rules.warning('Попытка нарушения правила отказа от плотежей', exc_info=True, extra={
                 'description': 'All payments already paid',
-                'user': user,
+                'user': self.user,
             })
 
     def get_full_price(self):