Unauthorised debit order an immediate refund expected

Unauthorised debit order, cancelled my subscription in January 2025, was informed that they will deduct again in February (they explained the process) I was fine with it, I requested for a confirmation email stating that they won’t be any debit from March (I received the confirmation email), Rain collected their rooter already but they still debited on the 25 March 2025, this is my second complaint as I never received any feedback.