We took a taxi to pick up our car. As we couldn't direct the old taxi driver to the pickup point, we used the call function in the app to call the centre and the taxi driver managed to drop us at the exact entrance which we need to take a lift to the parking. We were slightly early at the pickup centre, the staff were kind enough to process our papers and let us have the car. The registration took about 15 minutes and we are ready to go.
The car was in good condition. We didn't need to worry about refilling the gas, every gas station had someone to help us.