stupid verification system

i just called FNB how stupid is thier system. im request to put my id number..6 digits card number and card pin at the prompts to be assisted then go through to the consultant who has my profile infront of him to ask my security questions wich i apparently failed for him to tell me i will need to go into a branch just to update my incont cellphone number what a stupid system for me thats working and never have time to go into the bank. i need to change my bank doesnt work for me who doesnt have time to go into a bank.