Updating Personal Info doesn't work!

I have been trying for over a month to update my personal details on the FNB app, but after I select the South African country code +27, my cell nr and email address are correctly populated, then click the tick in 'I have read and confirm that the .....' and tap Continue. I keep getting the error 'Sorry your request cannot be processes. Please try again later or call ***'. I have called the 087 nr and the staff couldn't help as my call got sent from pillar to post to find somebody to help. Well well, the help is still outstanding, and I keep getting the messages to update my personal info. BTW I have gone to My profile and contact details to try that route = same error which hangs the app meaning I have to close and reopen to continue my banking routine.