Disgusted and disappointed in FNB service

I am absolutely horrified at the service I have been receiving from FNB. I have been a loyal customer of theirs for years now. I have requested for them to close a current account numerous times, every consultant I spoke to told me 5-7 business days, it has now been a month. At first they told me to pay the balance outstanding in my account which I done. Then more charges accumulated and I was told I had to pay that too, in addition to that unauthorised debit orders went off my account and when funds were transferred into that account my debit orders could not be reversed, R423 that I lost and cant get back. They keep transferring me tback and forth to different departments, *****, customer care, debit order, cancellation and no one can seem to resolve my issues.