It is even worse they negotiate "packages": "If you take our products A,B,C we do a 10% discount but if you take D and make sure that D' from our competitor is

It is even worse they negotiate "packages": "If you take our products A,B,C we do a 10% discount but if you take D and make sure that D' from our competitor is more expensive, we do a 15%." They do that with hospitals as well. Offering them free treatments that do good publicity against exclusivity.