Microsoft is raising prices for your current Microsoft 365 plan and include copilot as part of the price increase.
You have to downgrade to a lower plan which doesn't include copilot.
https://www.pcworld.com/article/2581179/microsoft-follows-google-with-price-bump-forced-ai-365-bundles.html
To, without customer approval, upgrade and bill for an additional optional feature, forcing the customer to cancel their subscription and restart the same subscription with a different name, may be legal, at the least is a terribly ethically challenged business practice. IMHO quite unscrupulous. Surely the elite business and law schools are not teaching the mentioned MSFT and GOOG marketing practices as reasonable and ethical. Are they?