diff --git a/lostplaces/lostplaces_app/models.py b/lostplaces/lostplaces_app/models.py
index a6d16fa..d513bb0 100644
--- a/lostplaces/lostplaces_app/models.py
+++ b/lostplaces/lostplaces_app/models.py
@@ -29,7 +29,7 @@ class Voucher(models.Model):
     Creation date is being set automatically during voucher creation. 
     """
 
-    code = models.CharField(unique=True, max_length=10)
+    code = models.CharField(unique=True, max_length=30)
     created = models.DateTimeField(auto_now_add=True)
     expires = models.DateField()
 
@@ -63,10 +63,13 @@ class Place (models.Model):
         longitude = 0
         latitude = 0
     
-        for place in place_list:
-            longitude += place.longitude
-            latitude += place.latitude
-        return (latitude / amount, longitude / amount)
+        if amount > 0:
+            for place in place_list:
+                longitude += place.longitude
+                latitude += place.latitude
+            return (latitude / amount, longitude / amount)
+
+        return (latitude, longitude)
 
     def __str__(self):
         return self.name