Dramacove Charging My Card for an Unauthorized Subscription

I am being charged for a Dramacove subscription that I do not recognize and cannot find any option to cancel. I never knowingly signed up for this service, and I do not know through which site or app this subscription was created. I also never shared my card details directly with Dramacove, only with Mercado Pago. In my Mercado Pago account, several charges have already appeared in the same month, on a weekly basis, converted from dollars into Brazilian reais. I have statements showing payments to Dramacove via my Visa credit card through Mercado Pago, with amounts such as R$ 77,42, R$ 170,73, R$ 157,07 and R$ 154,89, even though I did not authorize this subscription. Some of these transactions appear with “Contestação” and “Pagamento”, showing that I am already disputing these charges. I request the immediate cancellation of any subscription or service related to Dramacove that is linked to my data and payment method, and I also request a full refund of all amounts unduly charged. I ask that my payment details be removed from any automatic charging system and that a confirmation of cancellation and refund be sent to me.