How to Cancel DramaCove Subscription and Stop Recurring Charges

I downloaded the Drama Cove app from Google Play but never used the service or knowingly subscribed to any plan. My card is saved in my Google account and, without my authorization, weekly charges of 29.99 dollars started to appear in my card statement in the name of Dramacove. The first charges I identified were on 09/10, 16/10 and 23/10, as shown in the attached bank screenshots, with the amounts converted and debited in Brazilian reais. I live in Brazil, state of Paraná, city of Marialva, and all these transactions were made on my Brazilian credit card. When I realized the situation, I tried to access Drama Cove’s website to cancel any possible subscription, but the site does not work properly and does not allow me to proceed with cancellation. The application itself also does not offer any visible option to cancel or manage a subscription, which leaves me without any way to resolve the issue on my own. I request the immediate cancellation of any subscription or recurring charge related to my card and the complete deletion of my Drama Cove account and associated data. I also request that no further charges be made to my card in the future without my explicit authorization.