No way to reach SA Post Office

I received a notification from a supplier that there is an error with the delivery of my package and that the package is sitting at the SA Post Office. I have been trying to get hold of someone at the post office for the last 5 days to determine the cause of the problem. I have been alternating between using the provided telephone number 0860 11 502, ironically called their customer "service" line (6 times avg. +- 25min) and the *** email address with no success. I have even gone so far as to try to find different contact details from their website but the www.postoffice.co.za website doesn't open. The local post office branch in Sinoville also gave me the line that they have no access to the required data and can't/ won't help. How much fun it must be when your existence as a company is not dependent on your performance!!!