Debit Order not Cancelled on Cancelled Plan!

If I cancel a plan with a company, surely it is common sense that the debit order also be cancelled. We had a broker dealing with all our plans transferring them from Sanlam to another company - Sanlam still collected the monies for the cancelled plan and told me that it is non refundable! I have proof that the entire policy was cancelled in July 2021 and it was never communicated to any of us that the debit order was not cancelled! Anthea Abrahams kindly informed m that my money I paid from a cancelled policy is NON REFUNDABLE