Ha- especially when the AM website explicitly lists HG as a partner..

Had a similar experience once in the past where an agent insisted that LAN Peru couldn't be booked as it was a LAN Chile codeshare and 'a codeshare could not be booked per the T&C' A stern request to speak with someone at paygrade, where atleast a few grey cells were a requisite and an offer to run an Airline 101 program for that person's team did get that particular issue resolved.