EComposer Landing Page Builder

I am due a refund for unused services. I have previously requested this through your support chat and was directed to Shopify for a refund. Shopify states that Ecomposer is responsible for this refund and is declining to resolve the issue. They have reached out to your team for resolution. I have not heard anything back from your team, and I still have a yearly charge on my billing statement for your service which I never used and already deleted. 2 minutes after subscribing, I downgraded and requested a refund because I was not satisfied with the application on my store. Please resolve this issue as soon as possible.

UPDATE: ECOMPOSER IS A TERRIBLE APP AND SERVICE.
I was hoping Ecomposer would resolve the issue. Seeing as I was charged for an entire year of service without using the horrible application and only downloaded the app onto my shopify store for about 2 minutes to realize it was run-of-the-mill and just like any other landing page builder. I didn't use ANY of the application features because it wasn't any good. Deleted the app immediately after 2 minutes. Have gone through customer support at ecomposer, and they said they couldn't help me, and that I'd need to reach out to Shopify customer support. Well, Shopify customer support said that is not accurate, and Shopify support has filed Ecomposer as unwilling to assist a customer. Shopify support has reached out too Ecomposer to resolve the issue that they are unwilling to fix. So far, I've seen Ecomposer drop my billing charge from a yearly charge down to a monthly Pro charge..why? I shouldn't owe anything for this horrible application. I have emailed Ecomposer's support team 5 times over the last month WITH NO RESPONSE FROM THEM. They are thieves and their customer service is despicable. If my bill is not entirely resolved, don't be surprised if they are removed from the Shopify app store, because either I nor Shopify will allow this to go without consequence.