OLD MUTUAL PATHETIC SERVICE

I am very upset with the service I received from Old Mutual recently after sending emails with no response. I changed my debit order details with Old Mutual about 2 years ago and my premiums were going off the new bank account only for them to pay money that was due to me to my old bank account. I called them only for them to tell me the debit order and payout goes to different bank accounts .How is that possible ?Does tgat even make sense.Its clearly a mistake on Old Mutual side and they still did not contact me or rectify the mistake. Is this the kind of service we receive being loyal customers ?Absolutely disappointed with their customer service.