Disappointed customer

I requested a once off debit order from Old Mutual , I my documents on the 8 September until this day they have not debited the account nor are they answering any of my emails and when I call the call centre I go on hold resulting in my airtime being depleted. I have sent numerous emails and still no response from them the service and the communication is pathetic and I am disappointed that I am having to send an email everyday complaining about the bad service!!!