I am trying to get a netcode from Commonwealth Bank in Australia to an AIS number. I've been getting this for years. Just spent 20 minutes onto the bank and they said that it is AIS as Commbank is definitely sending the SMS. The same thing happened around 6-7 years ago. Apparently Commbank changed from Telstra to Optus (or something like that) and they did not allow international SMS's. I have tested my phone from several countries and the SMS's are coming thru. Any idea on what may be the problem?