NetShort Keeps Charging My Revolut Account After Cancellation

I had a mobile subscription with Netshort, which I cancelled on 21 October. Despite cancelling before the subscription renewal date, Netshort is still attempting to take payments from my Revolut account in the amount of 22.42. These payment attempts have been blocked, but they continue to appear and I am very uncomfortable with this situation. Netshort does not provide any customer support or contact options, so I have no direct way to resolve this issue with them. I want Netshort to completely cancel my subscription in their system, stop all current and future payment attempts, stop all existing and future subscriptions linked to my number and Revolut account, and ensure that no further charges will be requested from my Revolut account. I request that this issue be resolved as soon as possible and that written confirmation be provided that all payments, subscriptions and payment attempts have been fully cancelled.