I took up a R5 Emergency airtime to buy airtime for another number from my FNB eWallet balance. While airtime can be purchased for the native number by dialing *130*277#, it is necessary to use *120*277# if the airtime is to be for another number. With R5 account balance I kept getting the "You do not have enough fund to use this service" message. Whether it is a system bug or it has been left so intentionally is not known but I do know that it would not make sense should it be an intentional institution. I can only hope that 'T&Cs' has just applied!