Ridiculous Customer Service Experience

I have spoken to multiple people within the FNB secure chat regarding my account.It had been upgraded and I am being charged so much for it. When querying the account with the customer service advisors they have been very unhelpful regarding the situation. I have spoken to so much people yet there had been no help I had asked for proof that I have upgraded my account and was told it's been done online and no proof had been given.They have continuesly ended my chat with no help whatsoever. I have had it with FNB they have been charging me ridiculous amounts for service fees of R497 per month and monthly account fees of R240 which I did not sign up for.Please FNB needs to start helping their customers instead of blaming them for things that they have not done.