Getting fed up...

Update on Rock Auto. I managed to find an email address by digging deeper into their website, and they responded next day, said I could keep the part and are sending me a new part to replace wrongly labeled, all free of charge.
Wow. Terrific service, once I was able to communicate with a human being.
I’ll continue buying from Rock Auto after this- often they’re the only place to find reasonably priced parts.