I had the same problem but with westpac. It was true that was stopping the sms messages. I temporarily registered a dtac number, received a sms and transfered funds. I then orderd a token that was sent by DHL. recived in about 3 days. It took me many phone calls to both Westpac and true but i eventually changed to dtac and the problem lies with true, they are aware of this problem as the help line told me it's a reoccurring problem.