If you have Advanced Product or Nector 1 or 2, you can (I just did) purchase Vocal Chain Bundle for $99 at Plugin Boutique. This is way cheaper than any offers on Izotope even as a registered user. I'd been hanging out for a deal like this.
https://www.pluginboutique.com/


Windows 10 Home 20H2 Build 19042.487
BIAB 2021 (Build 818)
Intel(R) Core(TM), i3-4160, CPU @3.60 GHz RAM 16 GB, 64 Bit X64-based processor
Zoom UAC-2 (USB 3 interface-built in midi)
VoiceLive 3 Extreme, Sputnik Valve Condenser Mic