Terrible customer service

I have been trying to call this company for the last 25mins the numbers just ring and then cuts off.my title deed has been sent to them by nedbank on the 23 August and to date has not been routed to durban .they need to send the parcel to the correct place as the delay is now impacting me personally i cannot understand how Nedbank can use such an unreliable company to courier such important documents. The document is just lying there and no one thinks they need to work on this for a month.