/**
  * Recover from a lost response
  *
  * @param Request $paymentRequest
  * @throws Exceptions\ResponseException
  * @throws Exceptions\SignatureException
  */
 public function resposeExample(Request $paymentRequest)
 {
     //Perhaps the response was lost, submit a payment response request
     $respReq = $paymentRequest->createResposeRequest();
     $respResp = $this->rvn->send($respReq);
     $this->assertEquals($this->paymentResponse->get('TrackingNumber'), $respResp->get('TrackingNumber'));
     //Echo output
     $this->echoOutput($respReq, $respResp);
 }