Extra Charges Unacceptable

I was retrenched end of June. I requested that my payment method on my accounts be changed to EFT as I am not using the bank account the debit order goes off from. I will not agree to the extra charges on the accounts. I have been charged for non payment fees on all my accounts which I think is unfair as I was asking every time I spoke to a consultant to change my payment method to no avail. I will not pay that extra amounts on my invoices as I was not billed the previous month for it!!! I will pay what is due without that charges... So, in short, I NEED MY PAYMENT METHOD TO BE CHANGED TO EFT!!! WHY DENY ME THIS OPTION.... YOU HAVE BEEN GETTING MONEY FROM ME EVERY MONTH, NOT A SINGLE PAYMENT WAS SKIPPED... Oh and help from the call centre agents are as good as zero