No notice of postponed event

We bought tickets to Paw Patrol Durban. The show was postponed but we didn't receive any notification. They just quietly refunded the tickets. As we didn't notice the refund, we arrived at the venue only to find out that the show was payphone. We had a very disappointed 4 year old. Yoliswa informed us about the refund but completely ignored an email asking why we weren't informed about the postponement.