FNB refuses to refund my successful dispute

I have submitted a form to the bank regarding *****. I received a message on the 26th of July that the funds will be transferred back to my account and that I will see my balance has increased. The money was never refunded to me and still showed as a deducting. After trying to talk to someone on the FNB App Chat function, no one could assist and keep telling me they will transfer me to the "right department"...only to be transferred again. I decided that I will rather phone - bad mistake. From the minimum of 5 people I spoke to no one could help and also keeps putting me through "to the right department". I start all my conversations with "My dispute was successful....." and EVERY consultant then replies with "did you log a dispute" - really? Absolutely no one could assist or even took in what I was saying. This is nonsense. Give back my money or is it now somewhere in your own pockets?