LOST ITEM IN UBER

Good Day,

I requested an rode an Uber today at approxiametly 13h03. The driver was Evance, he was driving a white VW Polo Sedan. I forgot my cellphone in his vehicle and I have no way of contacting Uber. The services available only benefit the drivers and the riders are left in the lurch should something like this occur. I cannot access my app as I need a verification code which has to be sent to my phone which I DO NOT HAVE! I have even gone to the extent of using a friends app and the only option is to report a lost item based on your last trip?? The HELP option is useless as I cannot utilize it without my cellphone. I am unable to do anything with my phone as all my apps including banking are linked to this phone. The only part of the registration number that I remember is FX300...GP. My cellphone is off so there is no way I can even call it to alert the driver that it's in his car. Surely after every trip, a driver should inspect his vehicle before another passenger embarks the vehicle?!