FNB Worst!! Customer Service!

I working abroad I so I can;t receive my OTP's on my SA mobile number. I have now tried numerous times via Secure Chat (What a waste of time!!!) and by calling the international number for assistance. Both of them have failed to assist in changing my information. They are not even able to dial a simple international number to verify that it is indeed my number (Belgium Number). After also spending a long time on the phone with a consultant and apparently failing my security questions (Which no one will remember!!) the consultant also said he will send me forms to change OTP via email.....still waiting!!!!