/**
  * @todo move to better place
  *
  * @param type $service
  * @param type $account 
  */
 public function addServiceToAccount($service, $account)
 {
     if ($service instanceof VirtualPackage) {
         $transaction = new Transaction($account);
         $transaction->enableInvoice();
         $transaction->enableLogging();
         $transaction->setAmount($service->getCost());
         $transaction->setVirtualAmount($service->getAmount());
         $transaction->setInformation($service->getDescription());
         $transaction->disableExchange();
         $this->bank->deposit($transaction);
     } elseif ($service instanceof SubscriptionService) {
         $this->sa->add($service, $account);
     } else {
         throw new BankException("Unsupported service object class");
     }
 }