SHOPIFY STOLE FROM ME

It has been over 12 months now since I sent emails, text messages, inbox messages on Facebook and a tweet directly to Shopify. To request them to discontinue subscription. They have been deducting funds from our Account for over 12 months now!! I am very upset!! Plus they don't have a contact number. So our business must be paying for a service that we are not using? that is WRONG!!!! I NEED A REFUND FOR ALL THE MONEY THAT HAS BEEN TAKEN FROM OUR BUSINESS!!!