public function processBankTransfer(Transaction $transaction)
    {
        $transaction->setStatus(Transaction::STATUS_PENDING_TRANSFER);
        $pm = $this->manager->getRepository('EcommerceBundle:PaymentMethod')->findOneBySlug('bank-transfer-test');
        $transaction->setPaymentMethod($pm);

        $this->manager->persist($transaction);
        $this->manager->flush();
        
        return true;
    }