Routing a support/install/licensing issue to sales (often 5 different people) to try and strong arm you into paying money doesn't make it a sales issue. I don't know of any other software company that sells perpetual licenses that does this. I've had issues installing old software before, but never once have I been strongarmed to buy again like embarcadero does. Hell, I sell software, and if you came to me an told me you had lost your v1 license key from 2001 I would help you get it installed at no charge (this happens multiple times a week). Of course I might suggest that you upgrade (and even offer a discount to get you on board), but I'm not going to route you to different people or employ used car sales tactics to get you to upgrade, I'll make the offer while helping you.
Embarcadero need to do better if they want to retain customers and get old customers back on board, because right now their tactics are driving people away.