I read about this yesterday and the letters content has more than a tongue in cheek feel to it and I suspect the letter was written upside down as a way of bringing a smile to the shirts owner...
The owner of the dodgy shirt got a match ticket(printed the right way up)a new shirt and was invited to meet the players,the club has gone far and beyond what was expected of them to put it right,i would love this as a reply to my letter of complaint if this happened to me...
To doff my cap to whoever sent the letter from Wolves,its not their fault that some miserable git wants to carry on with their moaning...