paid for speed service, 4 days later still undeli

I posted a package to my client on Friday 22nd May 2015 at 10.10am for speed services to Midlands in Johannesburg. I was told it would be at the customers address at 10am on Monday morning. My client was leaving for overseas on tuesday so I was happy to pay that R170 for speed services. Monday at 1pm my client messages me saying that she hasn't received any package. She's been at that address all morning. I called the post office speed services from 1.15pm right thru to 5pm, and all 5 calls I made totalling 3hrs, they could not get hold of the driver. First they said he went to deliver at 10am but the client says she was home all morning . Meme was absolutely unhelpful as a manager and didn't even bother to sort it out and just left for the day yesterday. My client calls me this morning at 11am saying she still hasn't received it. This us absolutely disgusting and I would like my money back. At the same time I would like meme to sort this out, she has the tracking details.