A String, I'm sorry you didn't get a better response, but a refund, even with the high PITA factor, is better than a big, expensive paperweight sitting on your desk. We'll see how long it takes to set up your refund.
I would think after all you've gone through, they'd send you a check and a UPS, or FEDEX, RA #, so you could just be done with it. Don't let them pull a bait-&-switch by offering you credit towards another TC product. Fool me once, as the saying goes.
FWIW, you might look into something like this - Lexicon MX400. I'm not sure if it addresses your needs, but from everything I've read, the Lexicon units work.