I'm trying to use the SITA Web Services to add an emergency contact to a booking. I'm using this XML, but I keep getting "013 - ACTION" error
<OTA_AirBookModifyRQ xmlns:="http://www.opentravel.org/OTA/2003/05" TransactionIdentifier="" Version="2003.5.0">
<AirBookModifyRQ BookingReferenceID="JKYZJ" ModificationType="5">
<TravelerInfo>
<SpecialReqDetails>
<SpecialServiceRequests>
<SpecialServiceRequest SSRCode="PCTC" Status="11" TravelerRefNumberRPHList="1">
<Airline Code="XS"></Airline>
<Text>DOCTOR DR/XS222H.SISTER</Text>
</SpecialServiceRequest>
</SpecialServiceRequests>
</SpecialReqDetails>
</TravelerInfo>
</AirBookModifyRQ>