Bolt driver refusing to give me my phone back

As I draft this mail which will indicate that I lost my phone in the BOLT that one was in. The name of the driver: Evermore Vehicle: Toyota Etios Registration Number: CR 25 TS GP This event transpired on the 10th of August 2024 Device type: Oppo A74 5G worth R7500 the time of purchase The bolt came to our location which is at Malibongwe Drive around 02:37am and we order the ride to drop us off at Kagiso Central (Senzangakhona Drive) which it landed around 04:00am then after I realised that I forgot my phone in the car then we called the person who ordered the ride which is Thabiso Mokoena he managed to communicate with the driver and the driver (Evermore) stated that he has my phone and he wants 10litres worth of petrol to bring back the phone which we agreed then later on that day as we have been trying to get hold of the driver using the numbers that are shown in the bolt app. So as an unhappy customer I am personally thinking of opening a case of theft as the driver is not willing to co-operate and I want to expose him as an individual who participate in ******** activities and acts of exploitation using the name of BOLT which will be negatively impacted because of such activities. Can there be some sort of communicate with me as I am placing a complaint