The all-time absurdity for me was during the 1994-95 baseball strike, which cancelled the last two months of the '94 season, plus the playoffs and World Series. The Orioles (at the time considered to be one of the most fan-friendly franchises in MLB) sent a letter in November 1994 telling season ticket holders that they had to order and pay for their 1995 season tickets by 12/31/94 or face being dropped. At the time, the two sides were so far apart that there was no guarantee that there would be a '95 season or even how many games they would play if there was one. As it is, they lost more than 10% of their games because of the strike, but fans were still charged the full amount.
That is pretty crappy for sure. I believe refunds were given (at my former employer) b/c of Covid and STH's were given the option to bump their deposits towards the next season or could be refunded. This particular franchise claims to be the most cost affordable ticket in the MLB so I can respect that.