Old Mutual Superfund Withdrawal Unreachable

I have been trying to withdraw funds from my Preservation account managed by Old Mutual without success for over a month. They asked me to in forms and send them back to them (via e-mail) but ever since my attempts to send the documents have been in futile. The e-mails bounce back saying their mailbox is full. I lodged a complaint on their Superfund Portal and they sent me an alternative e-mail which is failing because of the same issues. It's as if they do not want to give my money back. I sent the document via Fax e-mail last Tuesday and have not received acknowledgement or any indication from Old Mutual. For an organization so highly looked upon to act so ***** leaves a lot to be desired. I attempted to contact them via telephone and I cannot get service as the number asks for an SA ID and I use a passport. So I am deadlocked in all attempts to contact and/or receive some form of feedback from Old Mutual