Gregory's Server
You haven't said which country you are based in, but under USA law, UK law, and EU law, it's called "tying" and is illegal under the anti-monopoly legislation.
This is one of the things that the #FAANG 's are being sued over right now. :D
Matt Stoller would be able to point you to someone who could help.
@BillySmith @lrvick @BenAveling @Jennifer this is fantastic information thank you