RAM's unprofessional service

Do not understand why they wil send a message to inform that delivery would take place within 48 hours, in other words me as Labor worker needs to take off from work 2 days to wait (Don't know for how long) in order to receive my package. A specific time or at least a message to stipulate that the driver will deliver the package between a certain time of the day to make sure that the receiver will be at the premises to take delivery. My bakkie does not run on water. Steven (Courier Driver) is very unprofessional and rude, tried to contact him twice and only got hold of him the 3rd time. I inform that I was at the premises by the time he picked up during the first 2 times I was 5min away, where I believed he could have waited when he had answered. Courier companies are wasting their own time and money including the receivers.