I mean, it could be some sort of bulk fare. But likely an error in display.

Is this for sure a published fare (even if with a corporate discount?). If so, likely a display error, which is actually not that abnormal to hear about (esp. if there is a partner involved). It may fix itself eventually, or may not. But my experience, even in the era of PQP and the last iteration (PQD) and ‘miles’ based on fare/status vs distance(/status), it’s fairly rare to have postings done incorrectly, no matter the display beforehand. In fact, the only time I’ve had this happen personally is during IRROPS and a switched segment(s), and even then it was a quick call or get it fixed.