Well, heck, maybe my email will find the right person. We had a couple of items crap out of us, brought purchased through Amazon, and it was terrific, they were replaced (one within like a week of the 1 year warranty), with only a couple of exchanged, but vendors selling through Amazon gives you pretty good leverage.
I'm afraid an Ebay purchase, factory sealed or not, may be considered a gray market channel (vs. Amazon or direct). I'll update if I get any response
So I sent that email (per above), Feb 11, ~7p EST (I realize time is important since they may be fielding CS communication on an opposite clock ...), and then Feb 12, at ~12p, I sent a communication through FB Messenger (no FB active, but I kept Messenger, er, for as much as they're a separate thing). As I mentioned, the email was posted by the TEKQ.US FB account - funny enough to a guy on Jan 6th asking about an issue on his MBP - so figured that was current, and certainly, if you're using FB at all, I should at some point at least see a "read" status on my Messenger communication (none as of yet).
I ordered a Sabret 1TB Rocket, $139 delivered (which will be today), since I figured these are my options / outcomes:
1) They never respond or respond with a "No can do", the enclosure still works, for ~$295 I have a fast, external TB3 drive, vs. my previous DIY I was going to do (i.e., small capacity TEKQ + Sabrent), call it about $30-40 more
2) Same, but exclosure actually doesn't work, and the SSD stick does, I've got 2TB of SSD, just need a case, maybe I get one that holds 2-4 sticks
Only out the enclosure (obv. I'd need another enclosure 1st to confirm this)
3) Nothing works with the TEKQ, I'm out ~$150, oh well, that's not a blip in the grand scheme of things (even though I tend to be frugal)
4) They actually _do_ come back, I return the entire drive, it gets replaced, I get another enclosure in the interim, I've got all sorts of external drives, hahaha
Sabrent delivered, installed, and prep'ed in about 10 minutes
So I guess I should edit my options/outcomes above, since the enclosure does work. So I guess at this point I get it replaced, score another enclosure and wind up with two (cool), or they never respond / say no, and I've got a nice 1TB drive (almost as cool

)