FNB Banking App disabled and unable to get it unblocked by FNB

My banking app on my cellphone suddenly stopped working. I called FNB Platimnum call centre and was advised that my banking app had been blocked due to suspected ***** activity via the app. I was advised to go into my nearest branch and have my account verfied by finger print and ID and then the app access would be unblocked. After 1 hour of sitting in the service queue at my local branch, my fingerprint and ID was verfied and the consultant called the ***** division to unblock the app. I was told that this had been done and I would have to wait 48 hours before using the app again. After 48 hours, I tried loggin in on the app and it's still not working!! I cannot understand why, since there has been no *****ualemt acitivity on any of my accounts or via the app that this is continuing!! Although I cn still access my online banking profile, I am unable to chnage my password, add new accounts or perform any basic functions as my app remains blocked and I cannot access the security function via via the app before any important ransactions are permitted. Help! This is madness and very poor service from FNb on all levels!