Had a chat to the (different) postie on Tuesday, as he gave me a huge pile of envelopes. He said I haven't had a delivery for days, lots of his colleagues are off sick* and my round has been tacked onto another one which means it gets dropped if they're running late.
The curse of delivery as a business is that those experiencing the shite service aren't the ones who choose or pay for it, so can't complain.
*my b-i-l may be one of them - he's type 1 diabetic and the sorting office is nowhere near Covid-secure