@AC "Once received a letter to my house number and street name - but for a different town about 20 miles away with a post code that only shared the initial city letters."
I used to live in xxxx road, with xxxx place just around the corner. I used to regularly get post incorrectly delivered to me for my number on xxxx place. Ironically it was usually bumpf from the CWU that was being misdelivered (Communications Workers Union - union for Royal Mail posties in the UK for anyone not familiar).