Driver STOLE my phone!

My phone fell out my pocket on the back seat of an Uber cab on 28-10-2019. The driver's name is "Leonil" from Zimbabwe and his plates are 655 732 (I don't recall CY or CA). I noticed my MIA phone within minutes of getting out. I gestured for the driver to return, while phoning my phone from my mother's. He ignored me and seemed to speed up! I continued phoning my phone until it started going to voicemail. Clearly he switched it off. I call "Uber Support" but because I was calling from my mom's phone, they refused to help. Not only would they not give me the driver's number, they WOULD NOT EVEN MESSAGE HIM for me. They said I needed the app AFTER I told them what happened, that my f****** phone was ******! Eventually I went to an internet cafe and logged into my online profile and lodged my complaint. I got an automail back saying I'd be contacted in 48 hours. By now my day with my mother was ruined. We had not seen each other in months and she is old and has little time left on this Earth. Anyway, a week later, Uber had not responded (I gave them my business number to contact me). By then, I'd gotten a new phone and lodged ANOTHER complaint via the app AS TOLD by the "help" center. It's over a month later and still no response. Their business is run like a circus. Sadly, I depend on them as I'm now partially disabled and cannot drive any more. Clearly they rely on people's dependence to sustain their business rather than building a good reputation with decent customer service.