Trouble cancelling subscription
I signed up for the Duolingo plus subscription to beef up my Spanish before a trip. I understood it to automatically renew until I cancel the subscription. That has been impossible. I have tried through my iPhone settings and iPhone app settings and am never led to a place where I can manage my subscriptions. Is anyone else having this problem. Quite frustrating that there is literally no customer support with Duolingo.
Just to add a quick tip to Pentaan's link, If you want a refund, but have gotten stuck in a loop of auto replies from Duolingo, please make sure you've submitted your ticket as a purchase issue via the bug report form. If you submit it as a bug or other issue, the sales department won't see the ticket. If you still have trouble with this, please leave me a follow up comment.
You can also cancel your subscription through your bank, Apple account or whatever payment method you are using, just ask them to cancel any recurring payments towards Duolingo, should be easy.