Additional features, settings, or issues not covered by specific Microsoft Teams categories
Check your Microsoft account’s Services & subscriptions page — if Teams Premium is listed, you can cancel it there. macOS/iOS don’t have their own billing.
If it’s not listed, I need to know which account you used and whether your Apple ID shows any Microsoft‑related subscription. If it turns out the plan was bought through Apple, cancellation is done in the Apple ID settings, otherwise Microsoft support is the safe path.