Change of Details STILL NOT DONE!

I previously had the std bank mobile app on my cellphone. I had to upgrade my account from a student achiever to an elite account as i was over age apparently yet still a student. Be that as it may, my card number changed as a result of the change of accounts. I still have my same account number etc. Its just the card numbers that changed. NOW, every time when i try to log onto the mobile app it says it has the wrong cell number. My cell number is correct as i receive OTP's when doing internet banking. Its the card number on the app that needs to change. I called the useless std bank call centre and they are a bunch of *********** individuals and san ridge well sand ridge branch is just pathetic. PLEASE CAN SOMEONE HELP ME TO SORT THIS OUT and NO i will not go in a branch again! i have been there to sort it out and i got this kind off service. Its a huge inconvenience. Pointless advertising the app if people cant make use of it!