After turning off Auto-Renewal, you will still have full access to all your PlayStation Plus benefits until the end of the current subscription period. You can turn auto-renewal back on at any time before the expiry date.
If you would like to cancel any other subscription services, go to [Settings] > [Account Management] > [Account Information] > [PlayStation Subscriptions], select the subscription you wish to cancel and select [Turn Off Auto-Renewal].
If the price of your PlayStation Plus subscription changes, you will be notified by email to the address you use as your Sign-In ID well in advance of any changes.