diff --git a/rowers/braintreestuff.py b/rowers/braintreestuff.py
index 86ad6b90..bb119be0 100644
--- a/rowers/braintreestuff.py
+++ b/rowers/braintreestuff.py
@@ -28,6 +28,7 @@ from rowers.tasks import (
     )
 
 from rowers import credits
+from rowers.utils import dologging
 
 import pandas as pd
 
@@ -70,6 +71,19 @@ def process_webhook(notification):
             except TypeError:
                 f.write(timestamp+'\n')
     if notification.kind == 'subscription_charged_successfully':
+        subscription = notification.subscription
+        rs = Rower.objects.filter(subscription_id=subscription.id)
+        if rs.count() == 0:
+            dologging('braintreewebhooks.log','Could not find rowers with subscription ID {id}'.format(
+                id=subscription.id
+            ))
+        else:
+            r = rs[0]
+            transactions = subscription.transactions
+            if transactions:
+                amount = int(transactions[0].amount)
+                eurocredits = credits.upgrade(amount,r)
+            eurocredits = credits.upgrade(amount,r)
         return send_invoice(notification.subscription)
     if notification.kind == 'subscription_canceled':
         subscription = notification.subscription
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index 0b404dce..f4f27297 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ
diff --git a/rowers/views/paymentviews.py b/rowers/views/paymentviews.py
index 92c7e5e3..88848e68 100644
--- a/rowers/views/paymentviews.py
+++ b/rowers/views/paymentviews.py
@@ -214,7 +214,7 @@ def purchase_checkouts_view(request):
             return HttpResponseRedirect(reverse('rower_select_instantplan'))
 
         amount, success = braintreestuff.make_payment(r,data)
-        diff = plan.price - amount
+        diff = plan.price - int(amount)
 
         eurocredits = credits.withdraw(diff,r)