Bad service

On the 27th February I went to Cape town Adderley street to hand in my bank details, ID and proof of address for a refund on an investment I cancelled telephonically in August 2014. At the branch their system was slow and they inventively assisted me and they took the details and I was told I will get my refund within 7 working days. I waited and there was no communication from Old mutual. I called the call centre and they said they did not get the information from the branch and that it doesn't show on the system that I was at the branch. They even said it doesn't show that I cancelled in August and they have no recorr of that either. I'm so frustrated of such service i'm receiving and i'm glad that I have cancelled my policy with them because they say I must go to the branch again and I must wait again.