They got one back in stock, and I decided to get an OEM remote to go with the discount fobs I'd ordered. I wanted a spare. I thought the OEM remote only has two buttons. The one they shipped to me was a 3 button remote, did not say Toyota, and (most importantly) did not pair with my truck. I just sent them an email to discuss returning it. (from their eBay ad, that seems like an option they offer for the first several days)
On the chance that my LC had reached it's 4 fob limit, I cleared all pairing from my alarm by activating the security light, then pressing the pairing button again within 5 seconds. I got the double horn honk mentioned in
@JLH911 's instructions on pairing. I confirmed that none of my fobs worked. I tried again to pair the "OEM" remote, and no luck. I paired one of the $15 remotes, and had no problem. I tried the OEM again, and nothing. I tried a second $15 fob and it also paired.
After clearing my alarm and re-pairing my $15 remotes, ONLY the button I pressed to pair the alarm works (but still locks/arms alarm - then unlocks/disarms). I'll soon check to see if the other "unlock" button can be paired to lock/unlock my brother's Land Cruiser. (The first set of pairing instructions say you can use one two button fob to control two TVSS alarms. One button for each.)