Review PostNet menlyn - Waterkloof Glen

I was shocked today and will be re-considering renewing my box with postnet.

Our post and magazine subscriptions are either not arriving and arriving very late so I went to speak to the manager at Postnet in Waterglen about this. I was gain told that the Post Office are on a go slow and there is a backlog. I know there could be a backlog but when I called the postmaster at Menlo Park post office he told me that the Postnet at Waterkloof Glen have not collected any post today.

I then called back the manager at Waterkloof who said that the post may be collected today and Added that they only collect once a week. If this is the case what are we paying for and we could just as well be using a box back at the post office. Please I would like to no if this is Postnet policy as if so it is shocking. I do look forward to a reply.
My address is Suite 63 Postnet at Waterkloof Glen.