Waiting 4 days for a router that I need to work- "excessive deliveries""

Dawn Wing (DPD Laser) were supposed to deliver a router to me on Friday morning. I received an sms early Friday morning saying it was out for delivery. On the website it said I would have the parcel by 11am. I called at 11am to ask where it was, and customer services agent told me the driver was running late, but that the parcel would be delivered. I called again after 1pm, and the agent I spoke to said she would contact the Cape Town office and someone would get back to me. No one called me. After 3pm I received an sms saying the parcel would not be delivered due to an administrative error. I called again late Friday afternoon and Saturday morning, but no real help. One agent said she would try to get it delivered Saturday morning. It is now Monday night, and I still DO NOT have the router. I called Dawn Wing three times today and they said the parcel is out and would definitely be delivered. I tracked my parcel on Dawn Wing website and the following message was put there at 19:01: We were unable to successfully complete the delivery of your parcel - Excessive deliveries. This is unacceptable. I need the router to work from home. If Dawn Wing cannot handle the "excessive deliveries" they need to tell clients, who can then use other courier companies. My delivery driver (according to sms) is Ryan Jacobs.