The problem with delivery people nowadays is that they are on such a restrictive schedule that they literally have to just try to deliver and run, otherwise they are penalised. I understand the frustration though.
And good luck making any kind of complaint to Evri. I once sold a laptop on ebay, took it to the Evri pick-up, where it was processed and it then went 'missing' between their pick-up place and the hub. Went through a long, long process where they offered me a desultory amount in compensation and I had to take them to small claims court before they came up with a fair offer the day before we were due to be in court. Long story short, Evri are shite.
Go to look at this forum for the number of people who have issues: https://nationalconsumerservice.co.uk/forum/183-postal-and-delivery-services/