Can I call 12315 to complain about yellow cars?

Yes. The yellow bike is ofo***'s shared bicycle. If you encounter problems while using the yellow bike, you can call 12315 to make a complaint. 12315 is the consumer complaint reporting hotline, which must be preceded by the Beijing area code 010, because ofo’s company is in Beijing. After dialing 12315, the staff will record the complaint and transfer it to the relevant department for unified processing. The processing cycle is 15 working days, and there will be feedback on the processing results.