Capitec Bank App

I used my banking app and within 5 minutes after logging in again, I get an error message to say that I need to visit a Branch to activate my app. I contact Capitec bank as I know that I have just used the app, only to be told that I have to re register the app as it has been suspended after several failed logins which is completely incorrect as I had just used the app and did in no way enter the incorrect pin. I asked the consultant what the reason could be for this as I use the app a lot and she says that maybe someone went on to my app and tried to log in again impossible since my phone has been with me and not out of my site. Now my only option is to visit a Branch which is not close to me so I cannot understand the excuse that I am getting when I know for certain that I did not enter the incorrect pin. This is unacceptable.