Compensation request

I'm extremely disappointed and frustrated. On the 27th of Sep. my daughter (17 years old) travelled with Uber and once she arrived at her destination she proceeded to take her bags from the trunk and the driver took off before she could take her suitcase from the back seat. She immediately attempted to reach the driver through the Uber app, who, until today, has not responded. Numerous attempts have been made to contact anyone at Uber, and we are blatantly being ignored. The suitcase that the driver took off with is a massive hard case suitcase that contained the majority of the clothes that my daughter owns, totalling more than R7000 in value. My multiple messages on Facebook Messenger are also being ignored by Uber, and Uber can not be contacted telephonically in South Africa. This is totally unacceptable. I am expecting to be contacted by an Uber representative ASAP to have this matter resolved.