Lack of urgency. Pathetic

Ordered 2 items on Zando on the 16 June 2019. Received 1 item on the 19 June. Was waiting patiently for the other item. On the 25 June received an email stating that the parcel was delivered. Problem is that it wasn't delivered to me. My front door is open and people are home but nobody has come through. Called Zando and spoke to someone in their call centre. Was informed that the parcel was collected by a 'Sharon' who is apparently a friend of mine. I unfortunately don't know any Sharon. So not sure who the item was handed to, or if in fact it was delivered. I asked the person on the line to call the courier company to rectify the mistake and to call me to let me know what was happening. Didn't receive the call back, so I called them again. Apparently an email was sent to management to address. My issue is that there appears to be a lack of urgency. The courier company should have been contacted because they were definitely still in the area, but it appears that Zando don't view potential theft as a matter or urgency. I'm interested to see what the outcome of this situation will be, because so far its shocking. Does Zando's courier partner just hand parcels meant for customers to just anyone on the street? Pathetic.