The feed must show retail
Advertising trade pricing that a consumer cannot access is a mismatch between ad and landing page — which is a policy finding.
Gate the trade side properly
Login-only pricing, clearly separated. If both prices are visible on the same page, expect questions from both Google and your stockists.
Watch the brand term
Your stockists may be bidding on your brand. Whether you fight that is a commercial decision, but you should at least know it is happening — auction insights will show you.