private function generateUpdateMappingXML(UpdateMappingRequest $request)
 {
     $xml = null;
     $xml = "<UpdateMappingRequest>";
     $xml .= "<AccountUsage>" . $request->getAccountUsage() . "</AccountUsage>";
     $xml .= "<DefaultIndicator>" . $request->getDefaultIndicator() . "</DefaultIndicator>";
     $xml .= "<Alias>" . $request->getAlias() . "</Alias>";
     $xml .= "<AccountNumber>" . $request->getAccountNumber() . "</AccountNumber>";
     $xml .= "<ExpiryDate>" . $request->getExpiryDate() . "</ExpiryDate>";
     $xml .= "<CardholderFullName>";
     $xml .= "<CardholderFirstName>" . $request->getCardholderFullName()->getCardholderFirstName() . "</CardholderFirstName>";
     $xml .= "<CardholderMiddleName>" . $request->getCardholderFullName()->getCardholderMiddleName() . "</CardholderMiddleName>";
     $xml .= "<CardholderLastName>" . $request->getCardholderFullName()->getCardholderLastName() . "</CardholderLastName>";
     $xml .= "</CardholderFullName>";
     $xml .= "<Address>";
     $xml .= "<Line1>" . $request->getAddress()->getLine1() . "</Line1>";
     $xml .= "<Line2>" . $request->getAddress()->getLine2() . "</Line2>";
     $xml .= "<City>" . $request->getAddress()->getCity() . "</City>";
     $xml .= "<CountrySubdivision>" . $request->getAddress()->getCountrySubdivision() . "</CountrySubdivision>";
     $xml .= "<PostalCode>" . $request->getAddress()->getPostalCode() . "</PostalCode>";
     $xml .= "<Country>" . $request->getAddress()->getCountry() . "</Country>";
     $xml .= "</Address>";
     $xml .= "<DateOfBirth>" . $request->getDateOfBirth() . "</DateOfBirth>";
     $xml .= "</UpdateMappingRequest>";
     return $xml;
 }