Refund me my money as of immediate effect

I cancelled my subscription in January end 2025 and I was informed that they will also continue to debit for end of February due to (they explained the process) I the requested for a proof of cancellation which they send and the consultant assured me that they won’t be any debits going forward, they collected the rooter in early February already, this morning Rain debited R595.00 subscription on my account the 25 March 2025, I want a refund completed as of immediate effect.