billed twice for my policies and have reported

I've got policies with them early this year I went to client service requested for all my policies to be on stop order. In April stop order took place and group schemes nido also deducted, which means the consultant that was assisting me never cancelled nido. Same thing happened this month. The problem is when I request my money back they don't give me direct answer. secondly an adviser wrote my my brother a policy and put my account number for deductions, I went to old mutual client service to report the incident. But now when I told them that I want my money they gave me negative attitude policy number 69667n*** amount is R1400 and this can take up to 3 months, so all want from them is my money.