USELESS FNB SERVICE AND AGENTS

I am so fed up with the terrible service and incompetence of FNB. When will they be held accountable instead of just offering BS apologies for their lack of service ?? I put in a cancellation request for FNB connect and was told VIA EMAIL that my last debit date would be 30APRIL .. why do I get an invoice today for a June debit ??? The chat staff on the app could not give me a valid reason-another pointless exercise of incompetence. Mind you for DAYS i have been trying to make calls, use smses and data , I even purchased prepaid and nothing works on my phone .. COMPLETELY INCONVENIENCED !!!!! I query it-NO FEEDBACK. Today I get told its because I'm prepaid now ....SO AT WHAT POINT WAS FNB GOING TO TELL ME THAT THE MINUTES, DATA AND SMSES THAT I PAID FOR, WOULD FALL AWAY ?? I REFUSE TO ACCEPT THIS SERVICE !!! Weeks ago I queried regarding my revolving loan .... I AM STILL WAITING FOR FEEDBACK, AFTER 2 OR 3 OF THE USUAL AUTOMATED RESPONSES !!!!!!!!!!!!! Maybe FNB'S slogan should be HOW CAN WE NOT HELP YOU ... !!!!!!!!!!!!!!!!!