You said I asked someone else to charge the phone bill, but that person dialed the wrong number for me. Should I pay him back?

It is a bit troublesome to deal with this problem. If you recharge in the agency, you can recover your money through the coordination of you, the agency and the business hall. But if you want to recharge successfully, you must get the consent of the wrong mobile phone owner. The agent will fill in the recharge form in the business hall, and the business hall will handle it for you. If you recharge through the online business hall, there is little hope of returning the goods. If you can't get your money back, you will have to negotiate with that person to deal with this problem. Then if that person is an agency or a business hall, you don't have to worry about anything. They will take care of it. Because it's not your responsibility, just let him recharge it for you.