Issue with updating my cell number with FNB

I've recently changed my number with FNB and I am battling to have my number updated on heir system.

I called in a changed my number. Now I have to change my number number with the profile department, the online secure department, the ewallet department , and do many departments.

I genuinely don't have the time to speak to so many people just to update one old number to the new cellphone number. Please get one person to call me to update everything at once. It is so much of an inconvience to always make time for one thing and be on long call queues and still not be helped.