I'm not going to force Walreins team to play on the one day they cannot play because your team says it can't play any other time. Walreins team gave many opportunities to play and they were ready to play at the deadline, which was today.
If you had PMd me with your scheduling problems I'd have done my best to help you, but I have only heard from Walrein and according to him you've been less than cooperative in scheduling, which is a complaint I've heard from others and witnessed myself.
If Walreins team can/wants to play on Sunday they can, but if they don't want to then they have every right to take the activity win.