I bought a 2281S PSU recently, it was made in late February and came with old firmware installed. I also hit this just to download the current firmware. Ended up just registering with a different e-mail address and said I was in the USA. I had an e-mail to that address today, asking how I was getting on with the KickStart software, and did I want a quote for a licence.
I have been waiting for ~3 weeks now for the "This process may take up to one U.S. business day and you will be notified when the process is complete." to actually happen. Suspect nothing really happens behind the scenes.
Now if Tek could fix the fan noise on the 2281S PSU that would be good too. It starts off slow during boot, then ramps up once it's booted, so is controllable.