Cannot change OTP secure settings

So my card expired and when I received my new card the OTP settings reset to SMS - why? Now I tried going to site where I can change the settings but I have forgotten my username and password - so I select such link to retrieve it and it says unknown error... not very helpful.<br> <br> So I cannot retrieve my own details so thats where I send an email to FNB to help me out and nothing has happened for about 5 days now.<br> <br> Annoying as I'm overseas at the moment with a new sim card and I have to change sims everytime I buy something online.<br> <br> Please assist asap please.