Getting charged even after the subscription is expired and not being able to cancel it (as it is already expired)

Hello, I subscribed for workout app called Daily Burn Workouts, I clicked on yearly subscription and monthly billing option as it was a better option. As time passed I was not really using the app and I wanted to cancel the subscription but I was unable to cancel it because I subscribed for one year. However, my yearly subscription expired on september 23, 2022, and I am still getting charged even after it expired. I contacted customer service of Daily Burn and I was told only way to cancel is from apple subscription. But there is no way to cancel it in apple subscription. Also, I do not have access to daily burn cause my subscription is expired. Please help me with this I do not want to pay for nothing. Below is the screenshot how it looks like.