Reverse debit orders, charges not resolved

I had debits that went off successfully on the 2nd July, with a positive balance after. FNB then decided to reverse the debit orders and charge me for it. Icalled on tuesday and spoke to Sandile who said i will receive a call in 24 hours with the outcome,48 hours later i called FNB back, Sandile was busy and the other lady could not assist, almost a week later i have not received a call or reversal of additional bank charges, due to FNB technical issue, i now have been fighting with my insurance who wants to cancel my policy and my RA might be suspended due to Non-payment. Thank you FNB for all the inconvenience you have caused and NOT HELPED ME!!!