Refund of unauthorised contribution

After the death of a member, Bonitas continued to deduct the monthly contribution in spite of numerous phone calls and emails cancelling the service. Each time I request a refund I receive 2 automated responses days apart and then thirdly, a request for information that they already have. Just a stalling tactic to my mind, to postpone refunding the payment which they had no authority to deduct in the first place.