FlickReels Full Refund And Cancellation

I am using the weekly subscription on Flick Reels and experienced a serious problem with payments and cancellation. On 18 September I was charged 19.99, the app showed that the payment was successful, but my benefits/credits were not added to my account and I was not able to cancel the subscription from within the app. On 22 September I was charged 19.99 again even though I still did not receive the credits and the subscription does not appear in my app store subscriptions on my Android device. Because of this situation I have paid twice for a service that I have not received properly and that I cannot cancel through normal means. I have not been able to take a screenshot because the app does not allow it, and I have not yet received any support from Flick Reels as I could not solve it from the app store side either. I kindly request that both charges of 19.99 from 18 September and 22 September be fully refunded and that my weekly subscription be cancelled immediately so that no further charges are taken from my account. I also ask for written confirmation once the refund and cancellation have been completed.