FND permit confusion

I am a ZEP holder and was made an executor or was issued a letter of authority on my late brother's finances. Now my query now is FNB is refusing to open a deceased estate account for me saying my permit is expired. So when the minister of home affairs Motsoaledi says he has extended the validity of ZEP permits so as FNB you don't recognize the extensions the minister announced? How do FNB say my permit is expired when it's validity has-been extended by the very same minister issuing such permits?