Stating the obvious, sorry, but surely Evri must realise that a postcode covers more than one house?
In my street it is the whole of one side of the street.
You could try asking at every house on your side of the road, or putting a note through the doors?
But ultimately, surely Evri have to take responsibility for misdelivery? Or the retailer who employed them to deliver your package to your specific address, not just anywhere within the postcode.