Yes, auto renew is in place but you can turn it off at any time in the account management section. Your current membership will not be affected if you turn off auto renew.
It will remain valid through the end of the membership term and you can cancel the following year's membership at anytime prior to 1 day before renewal.
Contact support via the following support request https://help.buffspremier.com/hc/en-us/requests/new .