protected function validateInsurancePolicyType(FormInterface $form, TransferInformation $data)
 {
     $insurancePolicyType = $data->getInsurancePolicyType();
     $penaltyAmount = $data->getPenaltyAmount();
     if ($insurancePolicyType == TransferInformation::INSURANCE_POLICY_TYPE_TERMINATE_CONTACT_POLICY || $insurancePolicyType == TransferInformation::INSURANCE_POLICY_TYPE_TRANSFER_PENALTY_FREE) {
         $data->setPenaltyAmount(null);
     } elseif ($insurancePolicyType == TransferInformation::INSURANCE_POLICY_TYPE_TRANSFER_PENALTY_FREE_AMOUNT) {
         if (null === $penaltyAmount || filter_var($penaltyAmount, FILTER_VALIDATE_FLOAT) === false) {
             $form->get('penalty_amount')->addError(new FormError('Enter valid penalty amount.'));
         }
     }
 }