chatGPT Error when using Proxy and enforcing SSL Inspection

chatGPT is not working through Zscaler Government Proxy when performing SSL Inspection. Works fine without SSL Inspection.
With SSL Inspection enabled, OpenAI is sending a 403 Forbidden error (verified in browser HAR file).

Anyone aware of OpenAI restricting chatGPT functionality based on user source IP Address? Or why Proxy with SSL Inspection would not be allowed?
Besides asking the ‘community’ for assistance, anyone aware of how to engage OpenAI Technical Support - email, IG, Twitter? Suggestions??