Uber after service support “poor”

Lost my keys on a trip last night, traveling to Rugby at Loftus. We tried in vain, numerous occasions (10+ times) last night and today for the driver to contact me and friend that hired the Uber van. It is so difficult to get in contact with the driver post Uber trip. I tried help.uber and did not achieve much. There isn’t really a contact centre in SA that can assist. Ian highly frustrated as my car keys, house keys and office keys are now missing. Uber’s after service support is absolutely shocking and needs to be reviewed. I am very unhappy!!