@jerry,C can withdraw the money if the agent is not keen. Some agents only read the confirmation code and as your number. In this case,C will give B's phone number,but its B who will receive the confirmation sms. If the agent decides to ask C whether he/she has received a confirmation,C can just say yes,and claim the phone is on vibration mode. But also remember to receive the payment,the agent requires your i.d card
'A stone is heavy,and the sand weighty; but a fool's wrath is heavier than them both.' (Proverbs 27:3).