diff --git a/client-barcode/freitagslib/commands.py b/client-barcode/freitagslib/commands.py
index eaf1d42..758207e 100644
--- a/client-barcode/freitagslib/commands.py
+++ b/client-barcode/freitagslib/commands.py
@@ -53,7 +53,7 @@ class BuyCommand(object):
 			raise ValueError("BuyCommand in illegal state")
 
 	def run(self, user_name):
-		net.buy_item(self._item.id, what_about_it=self._what_to_buy(), user_name=user_name)
+		raise NotImplementedError('BuyCommand.run(user_name)')
 
 	def item_name(self):
 		return self._item.name
diff --git a/client-barcode/freitagslib/network.py b/client-barcode/freitagslib/network.py
index 3dff65b..7727430 100644
--- a/client-barcode/freitagslib/network.py
+++ b/client-barcode/freitagslib/network.py
@@ -71,16 +71,6 @@ def get_user_name_from_auth_blob(authblob):
 	return d['username']
 
 
-def buy_item(item_id, what_about_it, user_name):
-	require_type(int, item_id)
-	assert(what_about_it in (ITEM_ONLY, DEPOSIT_ONLY, ITEM_AND_DEPOSIT))
-
-	content = _request('buyable/item/' + urllib.quote(str(item_id)),
-			{'user':user_name, 'deposit':what_about_it, 'amount':1}, method='POST')
-	if content != 'Created':
-		raise ValueError('Server says "%s"' % content)
-
-
 def bulk_buy(buycommands, user_name):
 	item_ids = tuple(e.item_id() for e in buycommands if e.includes_commodity())
 	deposit_ids = tuple(e.item_id() for e in buycommands if e.includes_deposit())
@@ -131,8 +121,6 @@ if __name__ == '__main__':
 	user_name = get_user_name_from_auth_blob(os.environ['BARCODE_PLUGIN_TEST_AUTH_BLOB'])
 	print('User name: ' + user_name)
 
-	buy_item(1, True, user_name)
-
 	balance = get_balance(user_name)
 	print('Balance is %f, type is "%s"' % (balance, type(balance).__name__))