FNB Secure Chats and Customer Service Proficiency is useless

I have banked with FNB since around 2010. I have lived at the same residential address for the past 4 years. Today I needed to download a Bank Confirmation Letter. To my surprise I found an incorrect residential address on my letter - a place I have never even resided. I tried the Secure Chat but got shunted from one department to the next. I then tried to call the 087 number provided and got cut off. I kept getting cut off and assigned to a new Chat person on the Secure Chat. I have basically wasted an hour and achieved nothing - and this all because FNB messed up my details somewhere along the line. FNB you are on a thin straw with me now. WIth ***** on my card twice in 2 months now this. Sort out your system, employ the right people to get the job done. Or I am out !