Stupid couriers always deliver after 8pm

I bought an item online via [URL Removed] and I was shocked to be getting calls at night, at some instances around 11pm to deliver my items. They never even attempted to deliver the following morning. This is really ridiculous because it means that now our safety is compromised as now we will be getting strange people knocking on our doors at night claiming to be delivering from Kalahari. I don't know if this is perfectly normal business logic to the company or what but I am no longer feeling comfortable shopping online. We can't be having people calling us at night to deliver. I am very happy even today haven't received my parcel because they keep calling at night. I am really regretful and disappointed.