+1. When you incur extra cost because of their error, they should make it right. Though it's doubtful that they would cover your cost beyond what you paid for the pickup set. Jay should also know because my guess is that you are NOT the only customer who has received this mixup. Such errors are more often systematic than random. He could have dozens or even hundreds of mislabeled sets.
I'm also personally embarrassed that I didn't think of this possibility, because I had the same basic issue happen with one of the GFS Xaviere Strat copies--it came with the bridge and middle pickups swapped, so it wasn't hum-cancelling in the neck-middle switch position. But these were regular single coils, so I didn't run into the more severe problem that you encountered with the Neovins. So my apologies for not being more astute in recognizing and suggesting that possibility....