No one can contact you. Call in for a Refund. Type in BILLING ISSUES instead of Refund on the contact form.
Contact Customer Service
5am-5pm Pacific Time (8-8 Eastern) Every Day until Oct 25, 2019
And until 9pm (12 midnight Eastern) on Tue 10/15/19
https://support.turbotax.intuit.com/contact/
Are you on the Advantage plan? Maybe you have more than 1 account? THEN you should cancel one account for next November by signing into your TurboTax Advantage account and under Your Product, select to remove product. Once you remove the recurring product order, the TurboTax Advantage subscription will be cancelled, as well.
How to cancel Turbo Tax Advantage
https://ttlc.intuit.com/community/downgrading/help/how-do-i-cancel-my-turbotax-advantage-subscriptio...
