FNB SHOCKED ME TO THE FULLEST

What a shocking experience from FNB CC division, My account was in arrears and i have made necessary arrangements to make payment soonest, I then look for the account on my FNB Profile and saw that it disappeared which i tried contacting the Accounts department and left voice messages but obliviously no one called me back. I then started receiving numerous phones call from MBD whom my account has been handed over to and the consultant John screams and threatens me on the phone and i am basically being terrorized over the phone. REALLY FNB????? I have been a loyal customer for years now and even after making an arrangement i get this type of treatment.