Terrible service FNB

My profile was blocked on Monday both online and on my banking app without me requesting it, not even being informed. They then said I needed to go into a branch and have my details reset as it was now in the ***** dept yet nobody could tell me why. I reset my online banking only for my banking app not to be working, it's been two days and still, it has not been resolved. Not even a follow-up from FNB. I was promised it would be resolved. Deplorable service!