Overnight is more like 10 days, marked as delivered, not delivered, marked as not ready for collection, is ready for collection

Sent some urgent documents overnight from JHB to DBN. Firstly they say it was not ready for collection, but it was. Then 9 days later, marked as delivered, but has not been delivered. You get a SMS saying its out for delivery, spend the whole day keeping an eye on the gate, not going anywhere, but it never came. This morning at 7:26 it was marked as delivered. I phoned in explaining it was not delivered, and they said they scanned the wrong parcel, and that it would be delivered by 9:30 today. It's still not delivered. If one requires the pin the SMS you to deliver it, how can they scan the wrong parcel as delivered?