Debit order deducted without notification

FNB credit decision decides to deduct my cheque account today the the 15th without notification for my credit card payment. No debit order date was even given or confirmed for as long as I have the credit card. I make payment each no th on the 26th which is my salary date. FNB deducts with no notification to me the client informing me that this is what they will be doing. Calling the call centre is useless as the explanation given is senseless as they do not understand the client. So done with this bank. Will be closing up all accounts and start banking with a bank that actually values there good standing payers