Unprofessional & heartless bank treatment

I wish to express total disgust at the treatment by FNB, my bank of over 20 odd years. I have multiple products with the bank and have paid back thousands in interest on my bond account. A recent barrage of calls, during the last 2 weeks, following a non-notification of a deduction, left me depleted. I indicated to the consultant that it would have been courteous & professional to pre-warn, the consultant then said that's why she's calling. I said its after-the-fact & thus double standards. Then this morning a senior consultant calls regarding an arrears of 0.44c, refused to write it off on my recommendation, & stated not policy. I expected more from my bank, to which y banking behaviour has been more than credible. I am slowly moving my banking products elsewhere