Pie/Cake reward failure

Describe the problem. Be as specific as possible!: I donated 201 cakes, waited for Pie to spawn in channel 5, killed it, changed to channel 6, it was killed the moment I spawned (it then announced that channel 2 remained the final fortress), I stayed for a while and didn't see the "Cake team has taken over the town " notice, but somehow noticed the 1:30 hour timer on top, so I assumed the battle was over.

I proceeded to claim my insignias, then this happened:

 Images of problem

I even have the cakes that the Pie boss dropped.