You can also just take the package back to UPS and say you wish to return to sender.
I've done this in the past leaving a polite note on my door with the tracking no. and my signature, asking it be returned to sender. So maybe that's worth a shot.
I was able to do this with my FF XV CE a few years ago. I did have to email SE about the refund. They were supposed to process the refund upon arrival, but didn’t.