diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..5bb298f
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,6 @@
+[tool.setuptools_scm]
+
+[build-system]
+requires = ["setuptools>=64", "setuptools-scm>=8.0"]
+build-backend = "setuptools.build_meta"
+
diff --git a/src/oscar_accounts/abstract_models.py b/src/oscar_accounts/abstract_models.py
index 35c9535..d877683 100644
--- a/src/oscar_accounts/abstract_models.py
+++ b/src/oscar_accounts/abstract_models.py
@@ -146,6 +146,7 @@ def save(self, *args, **kwargs):
         if self.code:
             self.code = self.code.upper()
         # Ensure the balance is always correct when saving
+        return super().save(*args, **kwargs)
         self.balance = self._balance()
         return super().save(*args, **kwargs)
 
@@ -161,6 +162,10 @@ def num_transactions(self):
     def has_credit_limit(self):
         return self.credit_limit is not None
 
+    @property
+    def realbalance(self):
+        return self._balance()
+
     def is_debit_permitted(self, amount):
         """
         Test if the a debit for the passed amount is permitted
@@ -193,7 +198,7 @@ def permitted_allocation(self, basket, shipping_total, order_total):
         range_total = D('0.00')
         for line in basket.all_lines():
             if self.product_range.contains_product(line.product):
-                range_total += line.line_price_incl_tax_and_discounts
+                range_total += line.line_price_incl_tax_incl_discounts
         if self.can_be_used_for_non_products:
             range_total += shipping_total
         return min(range_total, self.balance)
@@ -380,6 +385,10 @@ def save(self, *args, **kwargs):
         if not self.reference:
             self.reference = self._generate_reference()
             super().save(update_fields=['reference'])
+        self.destination.balance += self.amount
+        self.destination.save()
+        self.source.balance -= self.amount
+        self.source.save()
 
     def _generate_reference(self):
         obj = hmac.new(key=settings.SECRET_KEY.encode(),