False ********** Transaction because of Testing with PROD Data

On the 20th of August 2018 I was contacted by FNB to say that I reported a certain transaction on my account as ********** transaction only to find out that was because they were using PROD data for testing purpose (....And I wonder if all this R99-00 ****s gainst my account are not as results of such testing whereby our profiles are being used as test data without being scrambled). As a results my online profile was blocked and later unblocked, but unfortunately I had to change username and password, which I did and registered my biometric again. This worked fine until this morning whereby all of a sudden my biometric was an incorect password. I have changed my password 4 times in one day and until now I still don't have access to my online profile.