Old Mutual lack of assistance with refund

I have been struggling since November to get a refund out of Old Mutual. I closed an investment with them in September and in October my debit order went off again. I have been in contact with 6 different consultants and no one is able to assist me with my refund. I received my statement and upon review of it I could see that my last debit order was not Included in the amount. I have emailed their complaints and ombudsman but everyone have been giving me the runaround. It is mid February and I am still struggling to get my refund. I have been communicating to numerous people who could partially assist me but as soon as it is handed over to their payments/refunds department nothing happens at all. Last was when I received the transaction breakdown which further confirmed that the October debit order was not included in my payout.