Update -
I wrote to the VP of Audiobahn, explaining the situation. I got a letter back from the COO, with deep apology, and they sent me a replacement harness for free (next day air). Looks like I was just getting the runaround from one guy. I am satisfied with this level of support and reconciliation. Obviously, the management over there has its priorities in the right place, and I assume that this type of problem will not happen in the future.