Bad customer service. Frustrating experience

I had specifically done an upgrade with Vodacom online because they guaranteed me that my device would be delivered today.

Only to find out that the delivery would be done by RAM couriers. Up yo now I never received an SMS to indicate when they would be coming. I missed a call early this morning from the driver (first time I'm hearing from them). I have now called 3 times and spoken to 3 different agents who indicated that they would call the driver to let them know that I am available and check if they can come back and still deliver today. The last agent was supposed to call me back after contacting the driver and this has still not happened. I've expressed the urgency for needing it delivered today every single time but now that it's almost EOD having still heard nothing I doubt that this will happen and now I have to wait until the end of the long weekend

It's been a very frustrating experience overall. Learn to communicate and inform clients of the status of the delivery timeously. I shouldn't have to be the one constantly calling. There should at least be more than one attempt to deliver especially if the first time you hear that they want to deliver is on the day of delivery. Despite the fact that the agents sound so professional on the calls, the fact that I have to keep calling is frustrating.