Threatened by Takelot Driver at work premises

i purchased two items from Takealot, the driver delivered my package to the incorrect company, i was lucky to have the lady call me and i fetched the parcel from her. one of the items missing from my package, have been trying to contact Takelot for over a week to resolve, but emails continue back and forth.

Cherry on the top: the takelot driver shows up at my work place yesterday, asking for me and with arrogance says Takealot is accusing him of theft, he demands to speak to my manager, when this is my personal package but i opted to have it delivered to my company, i asked him to leave or call his manager which he did, the lady asked him to apologise to me, and he insists he was not rude. After the manager cuts the call, he threatens me further in plain view of my colleague.

Does Takealot have proper resolution channels, and do they screen their drivers ? This drivers mental capacity to comprehend was very limited which made him arrogant and they feel as customers we should be subjected to this.

After calling them several times, i have still not recieved my missing items, or the above incident been dealt with.

If i could rate them zero i would.