FNB is the worst

This is unbelievable. I contacted FNB from 3pm till 5.25pm for a small request. I use online banking and Cellphone banking, cancelled my app 2/3 years ago. I contacted FNB to reverse an unauthorized debit order, they've tried to send me a notification on my cellphone, it didn't come through, so they've transferred me to Online banking who then trfd me back and the consultant asked me if I changed device, yes I've been using the phone for 2 years now, they sent me to ***** departm to delink my old device, of which they did and then trfd me back to reverse, which Kuselwa assisted me, with her notification came through ( don't know what miracle she did) as we were talking my account was blocked, I couldn't sign on my online banking, she couldn't do anything, she didnt know what happened, trfd me to ***** who said all is well on their side, trfd me to Khanyi to trfd me to Petunia who couldn't assist, then trfd me to Tando (pronunciation wasn't clear) who decided to say hello then dropped the call. I don't know why my account is blocked, I didn't say I suspect any ***** but no one is willing to assist. I work from home far away from the transport to go to the branch (and this is NOT my fault) I am so disappointed and I now believe people when they say FNB is the worst.