Very upsetting visit today. I had two free passes ...

Very upsetting visit today. I had two free passes and went in today with my very, VERY excited toddler. I was told since they were having a fundraiser today that my passes would not be accepted. They told me that they would allow me to use them next time. The issue is I barely have the time and I had to drive a significant distance to get there. As a full time college student and a single dad, the hour and a half round trip was hard enough to pay for. There was absolutely nothing on my free pass that mentions there may be an exclusion due to specific events happening at the museum. I wanted to argue but decided that doing so in front of my 2 year old would not be appropriate. I'm very disappointed with Impression 5.