Aborted Delivery after I rescheduled.. RAM carried on and ignored me

I recently upgraded and was expecting a delivery from Vodacom. The delivery was sent back to VC as there had been 3 attempts to deliver. I only experienced and was notified of one. In addition RAM are claiming that there is no such person at the address, this after I spoke directly to a RAM representative on Wednesday telling him exactly where I am. He agreed to re-deliver on the Thursday as I was unable to get the parcel on the Wed. As I wasn't going to be in the office on Thursday I phoned the call centre at 8am to advise them and cancel the re-delivery and reschedule it for Monday. The call centre assured me that this would be done. So imagine my irritation and flat out frustration to be told that NONE OF THIS HAPPENED and that after speaking to two separate RAM people they had returned my delivery stating that I am NOT KNOWN AT THE ADDRESS and then claiming they had tried 3 times ???? In addition when phoning today to find out what happened the call centre agent didn't really seem to either care or be able to do much, simply regurgitating what the screen told him even though that wasn't what had happened. So RAM, now what ?