You couldn't make this stuff up.
Melbourne's twitter feed has been flooded with angry supporters who received a guide for the AFL finals from the AFL and Melbourne Demons.
“There's a bloody guide inside about how to buy finals tickets ffs,” one Reddit user wrote.
"I'll use it to wipe my salty tears," a twitter user said.
The Demons are yet to comment on the untimely letter send.
Here are some of the tweets the club has received...