FNB Private Clients Credit Card i want a response please

I contacted fnb on the 09th of April to log a credit card dispute ,i was told to send a form and my ID .I have been following up and getting no response .The automated machine the most useless device you have. I got through to 2 agents and they asked me to hold and got cut off and none of them called me back and thats after holding for over 10 minutes .Its a useless Private Clients services there is no joy from your callcentre agents