Given the runaround when trying to withdraw funds

I'm extremely unhappy with the service I've been receiving from momentum. I was dismissed from FNB in August, and put through a request to withdraw my retirement fund. It is now October and still haven't received my funds. I called in in September, after receiving an SMS stating that the funds had been released but nothing was reflecting in my account. I was told that the funds had been reversed due to the type of account that I had, and I needed to provide a different account number. I then forwarded new account details via email, and was told that everything was in order, and my funds would be released in the next couple of days. That was mid September, it's now October and I still haven't received my funds.